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So Elturel has been returned to the Material Plane.

(Probably.)

This is an epic conclusion to the campaign, and a triumphant note on which to finish. Everyone will probably be perfectly happy to see things wrap up.

But what if you want to keep playing?

To answer that question, we need to take a look at what’s been happening while Elturel was missing. And what’s likely to happen now that it’s returned. Whether you continue with high-level characters, likely to be dealing with the major political powers, or boot up a new campaign with low-level characters coping with these crises on the ground, there are rich opportunities for adventure.

ELTURGARD’S FATE

When Elturel vanished, it left a gaping wound in the earth. Tunnels that once connected to the dungeons beneath the city now opened into the crater, providing access to the dark dangers of the Underdark. (If you’re starting up a new campaign with 1^st level characters, consider running the first few sessions in The Crater to set the stage for Elturel’s abrupt return.)

Even with Elturel’s return, Elturgard is shattered. For nearly a century, Elturel had expanded its empire, laying claim to all the lands touched by the light of the Companion. They referred to this “protectorate” as Elturel’s Shield, which extended as far away as Berdusk and Boareskyr Bridge (where the Companion could be seen as an unmoving star near the horizon):

Note: This means that the Companion could be seen at least 175 miles away from Elturel. If you do the math, this means that the Companion must have been located 20,000 feet above Elturel. This doesn’t seem to match the lore, so it may be best to say, “It was magic,” if this should be interrogated.

The grandiose claims of Elturel’s Shield were unpopular with local polities, but were often more welcomed by local villages and farmers threatened by the trolls, orcs, and foul beasts that emerged from the Trollclaws, the Wood of Sharp Teeth, and the Forest of Wyrms. Over time, the claims became less boastful and more reality as one local power after another fell to Elturgard.

As we’ve seen, the disappearance of Elturel created a refugee crisis in the region. This was initially due to survivors of the catastrophe who had escaped the city or lived on its outskirts, but the crisis rapidly worsened as the threats once kept in check by the Hellriders began raiding and razing smaller settlements throughout the region.

Things worsened again as multi-polar wars broke out between the powers once aligned under Elturgard. These conflicts are heavily influenced by the Zarielites who had, of course, infiltrated the Elturgardian governments. They want never-ending, meat-grinder wars to chew up the corrupted military orders they’ve compromised and happily capitalize on the chaos left in Elturel’s wake.

(This is somewhat standard operating procedure for the Cult of Zariel: They target and hollow out martial orders and military organizations. Those they can’t convert directly to Zariel’s worship they corrupt by issuing immoral orders and fostering a culture of glorified violence and evil. Then the violence itself chews up the lives of those who have tainted their souls, speeding them on their way to Hell.)

THE ELTURIAN WARS

Scornubel declared itself the “Elturgard government in exile,” naming the citadel built by the Elturians in the city center as the new capital. Altaer Ambermantle was named High Observer.

This was most likely a sincere effort to stem the growing chaos, particularly as the government in Scornubel had purged the Zarielite attempt to infiltrate it due to an alliance between the Ambermantles and a band of daring adventurers in the 1480’s. In Scornubel, the Zarielites instead sunk their talons into the thieves’ guild, which they now used to destabilize Ambermantle’s neophyte administration.

Soubar was the first Elturgardian polity to openly declare independence. A small walled city ruling over a cluster of farming communities, there are rumors that the Banite priests who have recently reinhabited the Black Abbey, the ancient temple of Bane in the city, have performed a secret coup, but this may be nothing more than opportunistic propaganda.

Berdusk, the Jewel of the Vale, denounced Scornubel’s “coup,” effectively declaring themselves as the “true” capital of Elturgard.

Berdusk is ruled by the Twilight Hall. Originally a bardic college founded by the Harpers, Twilight Hall evolved into the native nobility known as the First Folk. When the city-state was conquered by Elturel (becoming the “second city” of the newly minted Elturgard), the First Folk made a great show of their piety, with heirs and scions joining and becoming high-ranking priests in the new religious orders of Torm established by High Observer Restat. This tradition of the First Folk to join holy orders eventually spread to the older churches in Berdusk, as well — the Inner Chamber of Deneir, Helm’s Ready House of the Right Strong Hand, Milil’s Evensong Tower, Oghma’s Seat of Lore, and minor orders dedicated to Leira, Lliira, Tempus, and Waukeen.

The problem is that the religious order of Torm was basically a front for Zarielite cultists. Under that guise, the First Folk were subverted, and then Zarielites spread into the leadership of the other religious orders, too. The First Folk are not all cultists, of course, but their ranks are riddled by them.

Triel, a small town northeast of Elturel, found itself choked with refugees, which have caused its population to increase five-fold. A former farmer named Sarika Fortune has, much to her own surprise, found herself leading a rag-tag volunteer militia. They recently (and controversially) assisted some of the independent gnome and halfing communities in the Trielta Hills, and there are some preliminary discussions of a Trieltan defensive alliance of some sort.

Representatives from both Berdusk and Scornubel have recently arrived to determine where Triel’s loyalty lies.

Najara, the serpent kingdom of nagas, yuan-ti, and lizardfolk which lies north of Elturgard, has seized advantage of the chaos. An army of serpents has moved south along the Winding Water and seized Boareskyr Bridge and Fort Tamal. As such, they now control the river crossing of the Iriaebor-Waterdeep Trade Way and de facto expanded their sphere of influence into the northern reaches of the Fields of the Dead.

King Jarant of Najara has sent ambassadors to the major powers of the Sword Coast, declaring his actions “necessary for the stability of trade and for the good of establishing peace in the region.” It remains to be seen whether Najara will settle for what they have gained or if they’ll seek further expansion into the former realms of Elturgard. (It may depend on whether or not they see a good opportunity.)

No one, however, is under any illusions that they’ll be giving up Fort Tamal without a fight.

The Second Fall of Fort Morninglord. In 1476 DR the entire garrison of Fort Morninglord, which lies west of Elturel along the River Chionthar, disappeared overnight. The site had been contaminated by some unknown evil and the High Observer ordered it sealed.

A new fortified encampment was established nearby and garrisoned. After the fall of Elturel, this fort was the only significant concentration of surviving Elturian paladins and Hellriders. It became the sanctuary for a large number of refugees.

When news of Fort Tamal being besieged by Najara reached Morninglord, an expedition of knights rode north to relieve them. In their absence, Zarielite cultists within the fort summoned a pit fiend. The fiend was eventually defeated, but dozens of knights were slain, hundreds of refugees were massacred, and the fort itself burned to the ground.

This sent a fresh wave of refugees down river to beleaguered Baldur’s Gate and broke the last bastion of Elturgard that was not dependent on one of its constituent parts.

The expeditionary force, unable to reach Fort Tamal in time, remains active-but-itinerant within the Fields of the Dead.

Zhentarim. Darkhold, the citadel of the Zhentarim, lies just to the east of Elturgard. The Black Network’s influence had been kept out of the region for decades by the strength of Elturgard, but the current situation is ripe for them to gain long-term strategic advantage. And even if that wasn’t the case, the Zhents are mercenaries. And if there’s one thing mercenaries love more than a good war, it’s LOTS of wars.

When King Jarant declared Najara’s sovereignty to the powers of the Sword Coast, the Zhentarim were early supporters of his regime. They have remained on good terms since, making it likely that Zhentarim mercenaries will be available to pursue Najara’s interests in the region. (They may have already fought at Fort Tamal.)

As the conflict worsens, Berdusk, Soubar, and Scornubel will all become highly motivated to seek Zhentarim contracts. The Zhentarim know this, of course, and have already sent diplomatic missions to each city. These missions serve a dual purpose, as their embedded spies seek out any hidden opportunities for the Black Network. (The Zhentarim are not, of course, above claiming a chunk of territory for themselves if the opportunity presents itself.)

One way or another, the Black Network and its mercenary armies are going to get involved.

Go to Epilogue – Part 2: Elturel’s Return

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So how does this all end?

Because we’ve created an open-ended campaign where the PCs’ choices and actions matter, I can’t really tell you how your campaign is going to end. I can’t just script a big, dramatic scene, because all the details of that scene will depend on what’s happened at your table. Ultimately, the end of your campaign will be unique. It will belong to you and your players. You’ll have built it together, and what you experience will be something your group and only your group will experience.

But here are a few key things to think about as you’re crafting your ending.

First, the broad outlines of this ending were laid out in Part 6B: The Avernian Quest. In order to save Elturel:

• Bellandi’s pact with Zariel must be broken.
• The chains holding Elturel must be severed.
• Elturel must be returned to the Material Plane. (Or, alternatively, the people of Elturel can be evacuated.)

There are many different ways for the PCs to achieve these goals, but this does mean that the finale of your campaign will almost certainly be the moment at which the PCs free the planetar from the Companion and the planetar literally lifts the entire city out of the Nine Hells.

As you’re figuring out what this scene looks like, think about:

• What’s going on in Elturel? Is the city stable or is it about to sink into the Styx? Have the PCs forged an alliance between the city’s factions or have things boiled over into a civil war?
• Who might oppose whatever it is that the PCs are doing? That might be an unredeemed Zariel. It might be Yeenoghu showing up with a demon army to confront Zariel once more. It might be Bel betraying the party and seeking to strike down Zariel to demonstrate to Asmodeus that he should once again rule in Avernus.
• What’s happening with the allies the PCs have made? Do they have favors they still owe, so that the PCs might choose to remain in Hell to fulfill their oaths, watching the city disappear into the heavens above? Is Tiamat flying nearby, having just severed the chains?

The trick to a good ending is, first, to tie off the important loose ends (although it can be okay if a few are left dangling) and, second, to reincorporate elements from throughout the campaign to make it feel a like a cohesive whole. The Avernus Remix roughly breaks down into three acts:

• Baldur’s Gate and the Vanthampur conspiracy
• Elturel in Hell
• Exploring Avernus

Look back at what happened in each of those acts in your campaign and think about ways in which those events can be reflected in your finale. You’ll also want to think about the important themes which have been established in your campaign and find ways to put those themes in the crucible one last time.

For example, maybe themes of betrayal vs. loyalty have particularly resonated with your group. Is there someone who can betray the PCs at the eleventh hour? Or, more powerfully, is there a way that the PCs will be forced to choose between remaining loyal to one of their allies or betraying them in order to save the city?

WHAT IF THE PCs ABANDON ELTUREL?

The goal of Descent Into Avernus is to save Elturel, but the Alexandrian Remix is flexible and robust enough that it’s fully possible that the PCs might set a completely different goal for themselves. Maybe they’ll conclude that saving Elturel is impossible; or that it’s not worth saving. Or maybe they’ll never really think of Elturel as being their responsibility; or they’ll feel that their responsibility ended once they delivered the crucial information about Bellandi’s pact to Ravengard.

Or maybe they’ll just find personal goals that they think are more important. It’s a campaign set in Hell, after all. Amorality and cruel disregard for the suffering of others isn’t exactly outside of the purview here.

If this is the direction your campaign goes, I’m afraid I’ll be of even less use to you in shaping an ending. When the campaign concludes (if it ever does), the ending you’ll find will obviously be focused on whatever the new goals of your group have become.

But even as the campaign shifts focus, don’t let everything that came before drop away.

For example, what happens when Elturel falls?

This should be the beginning of a significant shift of power. The ranks of Zariel’s army will swell, and the front lines of Blood War will shift. (Either because of a massive, preemptive assault by the demons; or the inevitable advance of Zariel’s legions with their new strength. Or both.)

• Troop movements will begin altering your hex key.
• What opportunities are created for the factions in your game? For example, warlords might start running magical weapons stolen from the front lines. Or they might go on missions to scavenge from bloody battlefields.
• In addition to open war, espionage will also increase. Add demon spies and quisling devils.
• What happens in the Purple City? Does it fall to a surprise attack? Become besieged? Swell with the wealth of war profiteering?

And so forth.

A GUIDE TO MILESTONES

If you’re using level advancement milestones, I recommend the following milestones.

ACT I – BALDUR’S GATE:

• Reaching Baldur’s Gate
• Completing the Poisoned Poseidon OR Amrik Vanthampur (whichever they do first)
• Completing the Dungeon of the Dead Three
• Completing the Vanthampur Estate

PCs will be 5^th level as they leave Baldur’s Gate and head to Candlekeep (and, subsequently, Avernus).

Design Note: A number of DMs have found that the Dungeon of the Dead Three is potentially very deadly for 2^nd level characters. These milestones conveniently give PCs an extra level before tackling the dungeon.

ACT II – HELLTUREL: The PCs will be 5^th level when entering Avernus.

• The end of the streetcrawl in Elturel (when the PCs discover that the city is floating in Hell).
• When forming an alliance in Elturel OR when completing the Grand Cemetery (whichever they do first).
• Leaving Elturel.

ACT III – AVERNUS: The PCs will be 8^th level when they leave Elturel and begin to explore the Avernian plains.

• Once for each of the four dream machine component recovered.
• Claiming the Sword of Zariel.
• Saving Elturel.

These milestones, which will see the PCs complete the campaign at 14^th level, assume that the PCs are pursuing the Quest of the Dream Machine. This is not, however, the only way to complete the Avernian Quest. If the player pursue alternative paths, you’ll want to set milestones accordingly. Something like this might work:

• Making an alliance with a local power. (Warlords, Maggie, etc.)
• Making an alliance with an Avernian powerhouse (Bel, Tiamat, released Gargauth, etc.).
• Retrieving the adamantine rods.
• Completing a raid on the flying fortress OR
• Breaking Bellandi’s pact.
• Saving Elturel.

Once again, this will see the PCs complete the campaign at 14^th level.

Go to Epilogue: The Elturian Wars

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ABJURATION GENERATOR: A pair of matching bronze poles extend from the ceiling and floor of this prism-shaped room. In the middle of the three-foot gap between them is a large, black diamond which is suspended in an energy field.

Energy Field: The field operates as a forcecage spell.

Black Diamond: Each facet of the diamond is inscribed with an arcane rune. A DC 20 Intelligence (Arcana) check reveals that the diamond is the focus for a powerful abjuration effect which, when triggered using a telepathic password, blocks all teleportation and scrying effects within the flying fortress.

The diamond is connected to the bronze poles with astral wires.

The abjuration effect can be turned on or off using the telepathic password. The abjuration effects can be canceled by severing the astral wires, removing the diamond from the energy field, and/or destroying the bronze poles.

Defenses:

• 1 bearded devil (knows the telepathic password)
• 2 barlguran slaves

BRIG: The brig contains four cell blocks, one of which features big cells designed for larger demons. Antimagic fields can be selectively raised and lowered for individual cells from a central console. The cells also have symbols written on the wall which prevent teleporting into and out of the cell.

• 5 cerberus spawn are the jailers.
• 2 cranial wretches (Book of Fiends, p. 150) are latched onto the skulls of prisoners in the torture chambers, sucking out their memories while slowly consuming their brains.

The doors throughout this area are security gates and there are demon detectors in each room and the hallways.

The cerberus spawn nest in several large chambers in one wing of the brig. One of these chambers is shared by an alpha pair.

COMMAND DECK: The control center of the flying fortress.

Defenses:

• 2 optio squads, stand guard at each entrance (W8 and W13)
• 1 primus squad, providing security on the Bridge (W1).

Commanding Officers:

• Zariel (01-70) chance) or Iseddon (71-90, her ice devil XO) or both (91-00).
• 25% chance of corps commander being present — Signifier Uxatarthus (01-40), Principia Hathastus (41-80), or both (81-00)
• 10% chance of Legate Siccatrax Augustus (pit fiend)

Bridge Crew:

• 2d6+6 imps
• Efrarta, a chain devil navigator
• 1d4+2 spined devils
• 1d4+2 bearded devils

W1 – Bridge. The ship is primarily controlled from here. There are a variety of consoles, including a central control station for piloting the fortress.

W2 – Alarm Console. This console monitors the internal security systems and reports on triggered alarms.

W3 – Backup Control Systems. This room is usually empty; it’s used if the primary control interfaces in area W1 are damaged. There’s a hatch hidden in the floor here which leads to service tunnels that can be access from (among other places) the Engine Room.

W4 – Damage Control. Damage reports from across the fortress are routed here and response crews and repair teams are dispatched.

W5 – Zariel’s Ready Room. A compartment Zariel uses for her personal work and for briefing (or dressing down) senior officers.

W6 – Safe. The safe is made from a three-foot block of infernal iron and stuck to the deck with sovereign glue. It uses a three-digit combination lock and requires three knock spells to open. If the combination is attempted unsuccessfully three times, it triggers an alarm in W2.

W7 – Divination Stations. The equipment in this room uses a variety of divination effects to monitor the area around the flying fortress.

W8 – Entrance. The stairs here go up and are primarily used by the officers corps (although reports form the Upper Perch also come this way).

W9 – Navigation Charts. Tables here have navigation charts of the immediate area laid out with the current location of the flying fortress indicated.

W10 – Commissary. A variety of food appropriate for devils is available here, including a number of rare delicacies.

W11 – Signal Desks. Behind each door is a closet with a miniature console and chair bolted to the floor. These consoles have keys and function like Infernal typewriters. An imp stationed at each console types orders from superiors on small slips of paper before delivering them to their intended recipients. Rigged above each desk is a long, slender horn through which bridge officers can dictate orders.

W12 – Imp Access. Three circular hatches on the floor connect to the imp signal tubes (some leading to interior locations; others to the Imp Roosts and, from there, to the exterior signal vents).

W13 – Entrance. The stairs here go down, providing primary access to the lower decks.

DEVIL DENS: The barracks of the bearded devils of the 7/5. The devils’ “bunks” are actually exuded foam “nests” with a spongy interior and a hard, shell-like exterior. The devils leave their heads exposed while sleeping, and then break out of the nest when rising. During the next rest period they’ll crawl into the remnants of the previous night’s nest and exude a fresh foam, creating over time a strange and alien structure. These nests are often infested with maggots (which the devils find comforting), who can feed on the foam. (This also results in the dens being filled with large, red-black biting flies.)

In addition to the dens themselves, there are a number of storerooms, common rooms, bog-rooms, and the like.

Alarm: If an alarm is sounded in the devil dens, there’s an essentially limitless number of nearby troops. During a fight, reinforcements arrive every 1d4 rounds. Roll 1d8 to determine the reinforcements.

In addition, each time reinforcements appear there is a 1 in 6 chance that the security response will escalate. When the security response escalates, roll twice for the current and all future reinforcements. Continue checking for additional escalations, the effects of which stack.

DOCK OF FALLEN CITIES CONTROL ROOM: An oval-shaped chamber with a sunken floor. In the center of the chamber illusion spells create a projection of the Dock of Fallen Cities (including, at the moment, Elturel) that floats in mid-air. There’s a ring of strange mechanisms – dials, switches, levers, and the like – around the perimeter of the sunken oval.

Bel’s Forgemark: The equipment is marked with Bel’s forgemark, indicating that it was built at Bel’s Forge (Hex H2).

Status Readings: A character can attempt to understand the dizzying array of readouts with an Intelligence (Arcana) check.

• DC 15: The character discover the true nature of the Companion (a prison containing and harnessing the power of a planetar).
• DC 20: There’s a release mechanism that can free the planetar, but the readouts indicate that it requires the insertion of nine adamantine “lockout” rods.
• DC 24: Monitors indicate that a huge charge of negative energy was released by the Companion when Elturel was brought to Hell. However, it appears the release of that energy caused an equal and opposite charge to be passed into the planetar within the Companion (where it is dissipating, but only very slowly).
• DC 28: The negative energy was an etheric charge that was built up in Elturel’s buildings, streets, and even people as a result of being bathed in the Companion’s light. The negative energy release occurred when the “polarity” of the Companion was flipped and was the actual mechanism by which Elturel was brought to Avernus. It seems likely that the only way to return Elturel to the Material Plane is a similar energy release.

Controls: A DC 15 Intelligence (Arcana) check indicates controls for releasing the chains holding Elturel, but they are “pact-locked.” As long as Bellandi’s pact remains in effect, Elturel cannot be released until the pact is nullified or destroyed.

ENGINE ROOM: The engine room is a large complex with three levels arranged around a central chamber that extends up through all three levels.

• Central Chamber: Suspended in the middle of the engine room is an iron, bell-shaped contraption painted black (Large object, AC 19, damage threshold 10, 45 hit points, immunity to poison and psychic damage). A DC 20 Intelligence (Arcana) check reveals that the bell is responsible for keeping the fortress aloft and level with the ground.
• Bottom Level: There is a maintenance hatch allowing access to the cistern beneath the engine room which holds necrotic-infused soul fuel. (See Entrances, above.)
• Middle Level: On this level, the central chamber is surrounded by several “control bulbs” — roundish rooms filled with gauges, monitors, and controls (big switches, small dials, etc.). Various service hatches can be popped, revealing service tunnels that twist throughout the flying fortress, leading to (among other places) the Bridge.
• Upper Level: There are storage rooms on this level, as well as hallways connecting the engine room to the rest of the ship.

Defenses:

• The chief engineer is a kere (Book of Fiends, p. 167) named Athaxial. She crawls around the engine room using her spiders legs.
• Athaxial is assisted by a small team of six imps (MM, p. 76) and two chain devils (MM, p. 72).

IMP ROOSTS: The quarters of the imps who serve as couriers for the Blood Legions. Although well-connected, the trick is that the passages and chambers of the roosts are all imp-sized: they can only be accessed by Tiny or gaseous creatures.

Imp sleeping quarters are domed chambers in which clusters of imps hang upside down from the ceiling, like bats.

Alarm: If an alarm is sounded in the roosts, the imps will generally prefer to avoid combat. Instead, they’ll try to invisibly track the PCs’ movements while alerting nearby security patrols who will respond quickly (or be waiting to ambush them) when the PCs leave the roost tunnels.

If the imps become aware that the PCs have killed an imp, however, they will swarm with 2d4 imps arriving every 1d4 turns. In addition, each time these reinforcements appear there is a 1 in 6 chance that the security response will escalate, doubling the number of imps appearing in each wave. Continue checking for additional escalations, the effects of which stack.

LOOKOUT DECK: A lookout deck located on the very top of the fortress is manned by 4 spined devils.

Rooftop Hatch: 10-foot-square hatch on the rear top of the fortress.

PERCH, LOWER: Located below the command deck, the lower perch is a set of five hangar bays, allowing flying devils, infernal war machines, and other aerial assault teams to launch during battle.

• Cargo Platforms: The two cargo perches have semi-circular silver platforms that can be slowly levitated to and from the ground when the flying fortress is stationary. They are operated by means of a copper pedestal attached to the platform. These platforms are generally used for cargo loading, but can also be used to bring non-flying, non-teleporting passengers into the fortress.
• Perch Access: It’s not unusual for one or two of the perches to be open during flight to allow flying devils to come and go, so it’s often possible for the PCs to simply fly in (if they can somehow avoid being detected by the devil legionnaires on security duty and also actively working throughout the perch).

Defenses:

• 2 optio squads
• 6 barlguran slaves
• 2 demon-detectors

PERCH, UPPER: Also known as the Crow’s Nest, the Upper Perch is located near the top of the fortress. It’s a single, small hangar bay from which flying scouts are deployed.

• The Three-Eyed Kenku: The taxidermied head of a three-eyed kenku hangs in the center of the perch. The devils think of it as a good luck charm. If you pat it on the head, it utters cryptic “prophecies” in a multitude of voices which may (or may not) be complete nonsense. (It does have a faint aura of divination magic.)
• Perch Access: The Upper Perch is generally not open except during an actual deployment. The doors can be raised or lowered from a control room at the back of the bay.

Defenses:

• 1 optio squad
• 4 barlguran slaves
• Scorpion Guns: The perch entrance is guarded by two small scorpion blasters (see Ventral Battery, below), which are used to prevent enemy flyers from breaching the perch during combat deployments.

ROOKERY: The Upper and Lower Rookeries are the barracks of the spined devils of the 3/5. In addition to perch-like “bunk” rooms, the rookeries include a number of storerooms, common rooms, armorers, and wing-pollers (basically cosmetologists for wings).

Alarm: If an alarm is sounded in a rookery, there’s an essentially limitless number of nearby troops. During a fight, reinforcements arrive every 1d4 rounds. Roll 1d8 to determine the reinforcements.

In addition, each time reinforcements appear there is a 1 in 6 chance that the security response will escalate. When the security response escalates, roll twice for the current and all future reinforcements. Continue checking for additional escalations, the effects of which stack.

Design Note: If the PCs can find a way to pass undetected through the rookeries, devil dens, roosts, or officers’ quarters of the flying fortress, it can often provide a more direct route to their objectives. But it’s also very risky, and getting into an armed conflict in the place where all the bad guys sleep is a really bad idea.

TELEPATHY STATION: A large, semi-circular control panel in the center of this chamber resembles a pipe organ that has had most of its ivory keys replaced with switches of blood red jasper. The brassy walls of the chamber are filled with roundels.

Roundels: Each roundel is a cylindrical chamber which can be extracted from the wall with a successful DC 12 Intelligence (Arcana or Investigation) check. Each chamber contains a magically preserved brain. (These brains, which are actually networked together and through the other machinery in this room via astral wires, are the mechanism by which the telepathic functions of the station operate.)

Telepathic Jamming: The station can (and almost always is) scrambling telepathic communications within 1 mile of the fortress.

Telepathic Transmission: If the jamming is dropped, the station can instead transmit a telepathic message to all devils within 1 mile of the fortress.

VENTRAL BATTERY: The ventral battery consists of several weapons bays.

Scorpion Array: Scorpion guns fire lightning bolts. Small scorpion guns deal 45 (10d8) lightning damage, while the six large guns deal 110 (20d10) lightning damage.

Firebomb Bays: The bomb bays drop ordnance that deals 35 (10d6) fire damage in a 40-foot-radius sphere. Some firebombs are rigged as missiles. They move 80 feet per round and are guided by integrated soul coins.

Firing Crews: Each weapons bay is manned. (Deviled?)

• 1 primus squad
• 1 optio squad
• 1d8-2 barlguran slaves

ZARIEL’S QUARTERS: The walls of Zariel’s opulent quarters are an ever-shifting mosaic of obsidian-black slabs limned with crimson light. Notable features include:

• A bath filled with blood.
• A collection of soul coins.
• Lighting provided by golden glow globes that float randomly through the suite.
• A demon’s skull hung on the wall.
• Beneath the demon’s skull there are two brackets for hanging a sword which stand empty.

There is a 25% chance that Zariel is present.

Entrance: There is an honor guard consisting of one erinyes and one horned devil outside the door to Zariel’s quarters.

Fractal Vault: A DC 20 Intelligence (Investigation) check can locate a concealed keyhole – a fixed point in the ever-shifting walls. The only key for this lock is carried by Zariel at all times, but it can be opened with a DC 25 Dexterity (Thieves’ Tools) check, which causes the wall to peel back, revealing a small vault.

The vault is empty except for another vault door (see below). If this vault door is opened, it reveals another small vault with another vault door, which leads to another vault door and another and another.

To access the real vault you need to enter one of the fractal vaults, turn around, and close the door you just came through. If you then open this vault door (requiring a DC 30 Dexterity (Thieves’ Tools) check) you will reveal a huge vault filled with infernal contracts:

• Countless drawers filled with paper.
• Calligraphic scrolls hung upon the black walls.
• Stone slabs stacked like paving stones.
• Several plinths on which particular contracts are displayed like pieces of art.
• A small series of linked statuettes displaying a sequence of sign language.

Zariel’s half of Bellandi’s Pact is located here. (Remember that infernal contracts can only be destroyed if you have both parts, so the PCs won’t be able to just go on a contract-destroying spree. At least, not easily.)

Fractal Vault Doors: The base DC for opening each fractal vault door is 25. Each vault door is also a little bit unique, featuring both a trick and a trap. Determine tricks and traps randomly using the tables below. All traps require a DC 18 Wisdom (Perception) or Intelligence (Investigation) to locate, and an appropriate DC 20 check to disable.

Go to Part 7E: Warlords of Avernus

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This was a resource which I wish existed while I was working on the Alexandrian Remix of Descent Into Avernus. Having compiled it, I thought others might also find it of use in planning and running their campaigns in the Nine Hells.

The lists below simply compile all the available devils in both official sourcebooks and a number of DM’s Guild and 3^rd Party sourcebooks, organizing them according to their challenge rating. It includes some non-devil fiends (like hell hounds and succubus) that are common in Hell, but does not include demons or yugoloths. (Yugoloths, however, are listed in a separate section below.) The sources include:

• MM = Monster Manual
• TOF = Mordenkainen’s Tome of Foes
• GTM = Volo’s Guide to Monsters
• DIA = Descent Into Avernus
• IE = Infernal Encounters
• EGD = Emirikol’s Guide to Devils
• SSA = Scientific Secrets of Avernus
• BOF = Book of Fiends 5E
• ED = Enhanced Devils
• CC = Creature Codex
• TOB = Tome of Beasts
• TOB2 = Tome of Beasts 2
• TOH = Tome of Horrors
• TOH2 = Tome of Horrors 2020

(If you’re reading this you might also be interested in the random encounter tables which use many of these devils.)

Note: The terms “Archdevil” and “Daemon Lord” below are not always strictly accurate from a lore perspective, but they indicate incredibly powerful, unique individuals.

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GENERAL CONDITIONS

There are a few things to keep in mind as the PCs are exploring the flying fortress.

Announcements: There are frequent announcements that can be heard throughout the ship. They include things like:

• Summons for particular devils to go to various places. (“Signifier Yurtarth, report to the abjuration generator.”)
• Navigational announcements. (“Prepare for acceleration.”)
• Personnel announcements, like shift changes, mess calls, or general quarters. These can include obscure references like “condition omega” or “enact red protocol.”
• Blaring alarm klaxons (if, for example, the PCs trigger an alert).

All verbal communication, of course, will be in Infernal.

Telepathic Communications: Are likely to be jammed by the Telepathy Station.

Teleportation: Is blocked by the Abjuration Generator.

Scrying: Is blocked by the Abjuration Generator.

ENTRANCES

ROOFTOP HATCH: Found on the Lookout Deck (see Locations, below).

SIGNAL VENTS: Tiny hatches on the hull connect to 1-foot-diameter chutes that lead to the Imp Roosts. Imp couriers use these chutes to enter and exit the flying fortress.

• Can be accessed by Tiny or gaseous creatures.
• Vent Labels in Infernal indicate if a vent is intake or exhaust (to avoid imps having head-to-head collisions).
• There is a chance of encountering an imp when the vents are used: 1 in 10 when ship is in dock; 1 in 8 when ship is in the field; 1 in 4 when ship is in battle. (PCs observing the vents – and able to see the potentially invisible imps – may be able to discern a traffic pattern to reduce or eliminate the possibility of encountering an imp.)

SOUL INTAKE PIPE: Grilled vent on the bottom of the fortress, just above the ventral battery, leading to a 5-foot-diameter pipe.

• Pipe leads to a 10-foot-diameter, spherical iron cistern.
• Souls from the River Styx are drawn up into the flying fortress when it is docked at the Stygian Dock and used for fuel in the cistern.
• The pipe and cistern are flooded with necrotic energy, and any creature starting its turn in either location takes 16 (3d10) necrotic damage.
• The cistern is located in the Engine Room, and there is a maintenance hatch allowing access. From the inside, there is no handle, but it can be broken open (DC 20 Strength check). This will also flood the Engine Room with necrotic-infused soul fuel.

LOWER PERCH: It’s not unusual for one or two of the lower perches to be open during flight to allow flying devils to come and go, so it’s often possible for the PCs to simply fly in (if they can somehow avoid being detected by the devil legionnaires on security duty and also actively working throughout the perch).

UPPER PERCH: The Upper Perch is generally not open except during an actual deployment. The doors can be raised or lowered from a control room at the back of the bay.

Go to Part 7D-C: Fortress Locations