1

Damaged rapiers, greased warhammers, moldy glaives, and other ruined weapons are scattered out across the floor, fallen from the empty copper weapon racks that line the walls. Each of its walls holds a three-foot by three-foot stone plate, mounted at the center of the wall and featuring a three-inch-diameter hole cut through the plate and the rock behind it. A balcony set into the south wall watches over the cavern and has a squat well atop it, with a green velvet curtain behind it.

There is an east path that leads to #2

2

A tunnel opens up into a large cavern, roughly 50 by 50 feet with a 35 foot high ceiling covered in stalactites. Murals marred with age adorn the cavern, but their particulars are impossible to make out. The walls are adorned with bones and skulls, arranged in a morbidly decorative fashion. The arched window in the west wall is covered with blankets.

There are 1 Monk of the Scattered Sands (CR 4: Nerzugal's Extended Bestiary p. 70), 1 Warlock of the Great Old One (CR 6: Volo's Guide to Monsters p. 220) [Hard, 3,400 XP rewarded] [Customize] here.

There is a west path that leads to #1

In the south path is a stuck door (DC 15) that leads to #3

3

A lingering fog limits visibility to a few feet. This dank, drab cavern is partitioned by walls of battered bars that split the cavern into three cells. The walls here are lined with copper hooks, upon which hang a gray gown and cape. The tunnel continues after the cavern, curving abruptly to the north and out of sight. Above a door in the eastern wall is mounted the skull of a drider. Fresh white drapes cover the windows of this circular room, and a heavy curtain hangs across an archway to the south.

There are 2 Commoner (CR 0: Monster Manual p. 345), 1 Berserker (CR 2: Monster Manual p. 344), 1 Firefist (CR 7: Guildmasters Guide to Ravnica) [Deadly, 3,370 XP rewarded] [Customize] here.

There is a west path that leads to #10

In the east path (red) is a wide, deep pit that spans the path with a ruined rope bridge hanging from the side that leads to #13

In the north path is a stuck door (DC 15) that leads to #2

In the south path is an unlocked door that leads to #4

4

This cavern stands in deadly silence. Two open stone chests stand against the east wall. A layer of fine dirt coats the inside of the chests and the floor around them. A stone door in the south wall is carved with a halfling's visage.

In this cavern is Spiderwebs (DC 12 Dex or restrained. DC 12 Athletics or Acrobatics to escape. AC 10, 15 HP, fire vulnerability, immunity to bludgeoning / piercing / psychic)

There is a north path that leads to #3

There is a south path that leads to #5

5

A dark, sweltering tunnel jerks down into the mine, the air growing more stale. A massive book lies open on a fountain, with an inkwell and a book next to it. Swells of a curious buzzing come from elsewhere, sounds outing into the cavern.

There are 3 Thug (CR 1/2: Monster Manual p. 350), 1 Cult Fanatic (CR 2: Monster Manual p. 345), 1 Tarkanan Assassin (CR 2: Eberron: Rising from the Last War) [Easy, 1,200 XP rewarded] [Customize] here.

There is an east path that leads to #11

There is a north path that leads to #4

In the south path (red) is a wide, deep pit that spans the path with a ruined rope bridge hanging from the side that leads to #6

6

The passageway straightens into a round-walled cavern some 40 feet long and 20 feet wide. Guttering orange torches set in sconces along the walls illuminate the cavern, and a mighty desk sits on a platform at the opposite end. Two doors stand opposite one another in the corner of the south wall and the north wall, with a round recess in the south wall. A gate of rough-hewn timber blocks a lengthy passage to the west. A large nest has been fashioned here out of branches and rubble, with 1 egg and 1 runed orb, in which rests the phoenix that looks up and caws as you enter.

The phoenix from before rests at its nest, warming and protecting its eggs. There are 2 eggs in the nest, but one is a runed orb that needs to be placed into a recess next to the south wall to cause the door to open. Depending on how the PCs resolved the previous encounter with the phoenix, its temperament can be friendly, neutral, or hostile.

The phoenix will shriek angrily at anyone approaching its nest, alerting the valkyrie and other remaining creatures in the dungeon. Run this as another freeform skill challenge with an average DC of 12 depending on how much you like their skill use, where failure results in the phoenix making an attack against the PC with +11 to-hit, dealing 8d10 slashing damage.

There is a runed orb and recess here. When the orb is pushed into the recess, it causes the wall to slowly open at the green path.

In the west path is a stuck door (DC 15) that leads to #7

In the north path (red) is a wide, deep pit that spans the path with a ruined rope bridge hanging from the side that leads to #5

In the south path (green) is a false wall that seals the path that leads to #17

7

Arched frames of natural stone form a low, damp ceiling over this cavern. In the middle of the room is a table with statues sitting at it.

In this cavern is a trap. This trap is activated when an intruder steps on a hidden pressure plate that opens vents in the floor and releases poisonous spores into the area.

Effect: Targets all creatures within a 10 ft. square area, Poisonous spores are released which deal 66 (10d10) poison damage and DC 18 CON save or be poisoned for 1 hour.

Trigger: pressure plate, activates when 20 or more pounds are placed on it.

Countermeasures: A successful DC 15 Wisdom (Perception) check will spot the pressure plate, and wedging an iron spike or other object under the pressure plate prevents the trap from activating.

Across a 25 ft gap, they find 140 sp, and 100 gp [Customize]

There is an east path that leads to #6

There is a north path that leads to #8

8

A pair of doors open to reveal a 50-foot-wide, 25-foot-long cavern leading to a brightly lit desk. A skeleton dressed in rags lies atop a granite slab in the middle of the cavern. There is a banded door in the south wall and a smaller unbanded door in the north wall.

Within this cavern is a cave-in, creating difficult terrain.

In the north path is a locked door (DC 15), with a key on a nearby creature or furniture, that leads to #9

There is a south path that leads to #7

9

A narrow hill surveys a deep, black crevasse that rips the cavern in two. A risky-looking vine bridge, frayed and thin, reaches over the space. Suspended above is a web-shrouded chandelier of forged copper. A stone door in the north wall is carved with a halfling's visage. A cramped hallway leads to another long cavern on the other side of this one.

In this cavern is a trap. This trap is activated when a creature touches its surface, which causes the needle to spring out, delivering a dose of poison.

Effect: Targets any creature that touches it, Placed in lock or opening mechanism, dealing 6 (2d10) poison damage and DC 10 CON save or be poisoned for 1 hour.

Trigger: touch trigger, activates when surface is touched by a creature.

Countermeasures: A spell or other effect that can sense the presence of magic, such as detect magic, reveals an aura of divination magic around the surface. A successful dispel magic (DC 10) cast on the surface destroys the trap.

There is a north path that leads to #10

There is a south path that leads to #8

10

Glowing coals in a crude hearth illuminate this cavern. Exotic stains cover the floor of this area. Soiled cloths have been tossed in one corner.

An object in this cavern bestows resistance or vulnerability.

There is an east path that leads to #3

There is a south path that leads to #9

11

Glowing coals in a crude hearth illuminate this cavern. A gate of rough-hewn timber blocks a brief passage to the east.

In this cavern is A Shrieker (Basic Rules pg. 309)

There is a west path that leads to #5

There is an east path that leads to #16

In the north path is a stuck door (DC 15) that leads to #12

12

A black, warm tunnel spirals down into the mine, the air growing more stagnant. A short chest is set next to beds. This cavern is congested with rough-hewn bunks, animal hides, and coals, and the floor is spread with filthy pelts. Ash paneling decorates the walls to a height of four feet.

In this cavern is A Shrieker (Basic Rules pg. 309)

There is a north path that leads to #13

There is a south path that leads to #11

13

The walls and floor of this natural cave have been precisely carved. Vines hang like dusty lace down every side of the cavern. A gate stands closed to the west. A barricade next to the far wall leads to the east.

In this cavern is A Shrieker (Basic Rules pg. 309)

There is a puzzle: A Hallway that looks normal but ends in a dead end. When you turn around there is a wall 5 ft behind you. You are now stuck. The wall appears solid. On the end wall there is writing saying 'keep your eye here and you may escape.' The player has to look at the writing and walk backwards to escape the hallway. Solving the puzzle causes the rope bridge to magically repair at the red path.

In the west path (red) is a wide, deep pit that spans the path with a ruined rope bridge hanging from the side that leads to #3

In the east path is an unlocked door that leads to #14

There is a south path that leads to #12

14

This brick walled cavern is roughly furnished and decorated compared to the rest of the mine. Its floor is swathed in a heavy carpet, and it holds four-poster bed, its headboard carved in depictions of a knight, armoire, bunk bed, and stone crib with a statue of a small, ugly child standing in it. A balcony set into the south wall overlooks the cavern and has a modest pentagram atop it, with a yellow animal hide behind it. Two open archways in the south wall lead to another cavern. The ceiling past the first archway is damp.

Within this cavern is overgrown mushrooms that block progress and must be hacked down (25 percent chance of a mold or fungus dungeon hazard hidden among them).

In the west path is a locked door (DC 15), with a key on a nearby creature or furniture, that leads to #13

There is a south path that leads to #15

15

Stifling air fills this round cavern, the walls of which are cloaked with dew and worn smooth. Ragged and marred tapestries cover the bronze barred windows of this round room, and empty torch sconces line the walls. 10 feet ahead, arched doorways lead south and north from each side of the hallway. In each arched doorway, a stone door stands closed.

In this cavern is Spiderwebs (DC 12 Dex or restrained. DC 12 Athletics or Acrobatics to escape. AC 10, 15 HP, fire vulnerability, immunity to bludgeoning / piercing / psychic)

There is a north path that leads to #14

There is a south path that leads to #16

16

The ceiling is almost 90 feet overhead, and bright flecks and gleaming granite formations are visible in the distance. Curious stains cover the floor of this area. A heavy book lies open on a trophy pedestal, with a book and a quill next to it. Opening off both sides of this cavern are alcoves that contain moldy worn notebooks, bloodstained cloth, and surgical tools.

There are 2 Lantern Dragonette (CR 1/2: Tome of Beasts p. 270) [Easy, 200 XP rewarded] [Customize] that are not hostile here.

In the cavern is a puzzle: What question can you never honestly answer yes to? A: Are you asleep? (or dead).

If the puzzle is solved, they find 130 sp, and 70 gp [Customize]

In the west path is a stuck door (DC 15) that leads to #11

There is a north path that leads to #15

17

The air here is humid and smells of fine perfume. A dozen small robes hang on the walls from copper hooks. This enormous cavern is lined with ten great pillars, carved into the forms of giants and griffons, that support the vaulted ceiling high above. The west end of this room has collapsed, exposing the room beyond. A dark archway leads out through the north wall.

In this cavern is a trap. This trap is activated when a creature touches its surface, which delivers a dangerous surprise to anyone touching the lever.

Effect: Targets any creature that touches it, 17 (2d10) damage and DC 11 CON save or stunned for 1 round

Trigger: touch trigger, activates when surface is touched by a creature.

Countermeasures: A spell or other effect that can sense the presence of magic, such as detect magic, reveals an aura of divination magic around the surface. A successful dispel magic (DC 11) cast on the surface destroys the trap.

In the west path is a locked door (DC 15), with a key on a nearby creature or furniture, that leads to #18

In the north path (green) is a false wall that seals the path that leads to #6

18

Thick dust covers the floor, and moss and leaves choke the passage. A squat, smoky fire pit crackles in the middle of this cavern. A draft draws the smoke up through a hole in the ceiling. The floor is strewn with provisions and crates. On the granite floor, fallen chandeliers lie amid rotting statues and other furnishings. A plain stone door is set into the east wall, and light seeps through its cracks.

In this cavern is a trap. Targets all lawful creatures that touch it, DC 18 WIS save or take 51 (10d10) damage and become confused stunned for 3 (1d4) rounds

Trigger: touch trigger, activates when surface is touched by a creature.

Countermeasures: A spell or other effect that can sense the presence of magic, such as detect magic, reveals an aura of divination magic around the surface. A successful dispel magic (DC 18) cast on the surface destroys the trap.

There is a west path that leads to #19

In the east path is an unlocked door that leads to #17

19

The floor has been cut into hollow steps, but the walls and ceiling are still natural stone. A cramped pot bubbles over a blazing stone brazier in the middle of the cavern, its yellow, muddy contents churning.

There are 1 Valkyrie (CR 8: Monster Module p. 8) [Hard, 3,900 XP rewarded] [Customize] here.

If combat breaks out with the valkyrie, the pot bubbles over each round on initiative 10, causing the yellow liquid to spread out in every direction. Any part of the terrain covered with the liquid is difficult terrain, and anyone that begins or ends their turn in the liquid must make a DC 15 Dexterity Save or fall prone.

Talking down the valkyrie is a skill challenge, she's stubborn and proud, believing that the PC's kingdom is dangerous and corrupt. If the skill challenge is failed, the valkyrie summons a pegasus and gets a surprise attack.