Fantasy Location: The Hidden Island

Fantasy Location: The Hidden Island

The Hidden Island is normally avoided by ships. It lays in the deep sea, surrounded by a pod of kraken. The island itself has two buildings on it. Both are submerged just a few feet under the water, so are a bit of a navigation hazard, especially during storms.

The two buildings are ancient temples. Each has a sundial inside centered inside. If someone moves one of the dials, they will hear a rumbling sound.

One dial actually raises the island out of the sea. Once it’s out of the water, it instantly starts growing plant life. Within six to eight hours the island is fully revegetated like it was never underwater. Once the island is out of the water, the second sun dial opens a previously hidden door. This dial does nothing if the island is still under water.

This opens into a Dwarven Village which has a secret passage down into the Underdark. The Dwarven city is unnamed and empty.

From the Dwarven City passages in the Underdark eventually lead to a drow city of 3000. It sits upon an huge underground sea. If someone manages to get to the middle of the sea, there is a huge whirlpool that goes upwards to the ocean. Entering the whirlpool takes someone to the ocean surface. During storms the whirlpool reverses and instead sucks objects from the sea above down in to the caverns.

Underdark (Lowerdark) Desolate Area Encounter Table

Underdark (Lowerdark) Desolate Area Encounter Table

Desolate areas are wild caves and tunnels that are not settled and generally do not support much in the way of wildlife or monsters. Much of the Lowerdark is desolate.

Aboleth
Aboleth slaver brood
Annihilator
Avolakia
Behir
Beholder
Beholderkin (deathkiss or gouger)
Bodak
Cloaker mob
Cloaker, shadowcloak elder
Cockroach, giant
Deepspawn brood
Delver
Desmodu
Dragon, mature adult deep
Dragon, mature adult copper
Dragon, very old black
Dragon, mature adult red
Dragon, mature adult shadow
Drow patrol
Duergar raiders
Earth Glider
Elder eidolon
Fiendwurm
Fomorian
Giant, stone
Gloura
Grimlock hunters
Gray render
Illithidae (any)
Kuo-tao war party
Lurker
Lurking strangler
Maur
Mind flayer (or slavers)
Mohrg
Nightshade (nightwing or nightwalker)
Ooze, elder black pudding
Phaerimm
Psurlon, elder
Purple worm
Roper
Roper, urophion
Rukarazyll
Shaboath (waters)
Spider, wraith
Stone flyer
Susurrus
Swarm, swamp strider (near lakes & rivers)
Teratomorph (usually in or near water)
Tomb tapper
Tunnel terror
Umber hulk, truly horrid
Underdark landwyrm
Wraith, dread wraith
Xorn, elder
Yrthak

Underdark (Lowerdark) Wilderness Encounter Table

Underdark (Lowerdark) Wilderness Encounter Table

Lowerdark wilderness areas are wild caves and tunnels that are not settled but still support significant wildlife or monsters.

Aboleth
Aboleth slaver brood
Annihilator
Avolakia
Behir
Beholder
Beholderkin (deathkiss or gouger)
Bodak
Cildabrin
Cloaker mob
Cloaker, shadowcloak elder
Cockroach, giant
Desmodu
Delver
Dragon, adult deep
Dragon, adult copper
Dragon, old black
Dragon, adult red
Dragon, adult shadow
Drider
Drider, vampire
Drow patrol
Duergar raiders
Deepspawn & spawn
Earth Glider
Fiendwurm
Fomorian
Giant, stone
Gloura
Grimlock hunters
Gray render
Hound of the gloom
Illithidae (any)
Knell beetle
Kuo-toa war party
Lurker
Lurking strangler
Maur
Mind flayer (or slavers)
Mindshredder (any)
Mohrg
Nightshade (nightwing or nightstalker)
Ooze, elder black pudding
Phaerimm
Phaerlock
Psurlon, elder
Purple worm
Roper
Roper, urophion
Rukarazyll
Spider, dread harpoon
Spider, shadow
Spider, wraith
Stone drake
Stone flyer
Stonesinger
Susurrus
Swarm, swamp strider (near lakes & rivers)
Teratomorph (usually in or near water)
Tomb tapper (thaalud)
Tunnel terror
Umber hulk, truly horrid
Underdark landwyrm
Wraith, dread wraith
Xorn, elder
Yrthak

Underdark (Middledark) Wilderness Area Encounters Listing

Underdark (Middledark) Wilderness Area Encounters Listing

Wilderness areas in the Middledark are wild caves and tunnels that are not settled but still support significant wildlife and monsters.

All-consuming hunger
Arcane ooze
Bat, deep (sinister)
Barghest
Behir
Beholder
Bodak
Chitine hunters
Cildabrin
Cloaker
Cockroach, giant
Deepspawn and spawn
Delver
Derro bandits
Destrachan
Devourer
Dragon, young adult deep
Dragon, adult black
Dragon, young adult shadow
Drider
Drider, vampire
Drow patrol
Drow slavers
Duergar marauders
Earth Glider
Fomorian
Foulwing
Giant, stone
Gibbering mouther
Gloura
Grimlock hunters
Hook horror
Hound of the gloom
Ineffable horror
Kuo-toa patrol
Knell beetle, lesser
Lurker
Lurking strangler
Maur
Metalmaster
Mind flayer and/or slavers
Mindshredder larva
Mindshredder warrior
Minotaur
Mohrg
Nifern
Nightshade (nightwing)
Nycter
Ooze, black pudding
Phaerimm
Phaerlock
Purple worm
Rampager
Roper
Scorpion, giant whip
Spellgaunt
Spider, giant sun
Spider, giant whip
Spider, harpoon
Spider, Huge monstrous
Spider, shadow
Spider, subterranean (sword)
Spider, wraith
Stone drake
Stone flyer
Stonesinger
Summoning ooze
Susurrus
Svirfneblin patrol
Swarm, centipede
Swarm, swamp strider (only near lakes & rivers)
Teratomorph (usually in or near water)
Tomb tapper (thaalud)
Troglodyte war party
Troll
Troll, cave
Tunnel terror
Umber hulk
Vampire troupe
Vaporighu
Vermin lord
Wraith
Xorn, average
Yrthak

Underdark (Middledark) Settled Area Encounters Listing

Settled areas feature colossal caverns that can be miles on a side, a number of small villages and vaults no more than a day or two travel from each other, and some tunnel patrols from nearby cities or fortresses. Patrols are most often Drow, Illithid Thralls, Duergar, or Derro.

All-consuming hunger
Barghest
Bat, deep (sinister)
Behir
Chitine hunters
Cildabrin
Cloaker
Deepspawn & spawn
Derro bandits
Destrachan
Devourer
Dragon, young adult deep
Dragon, young adult shadow
Drider
Drow merchants
Drow scouts
Drow slavers
Duergar marauders
Ineffable horror
Giant, stone
Gloura
Grimlock hunters
Kuo-toa patrol
Maur
Mind flayer slavers
Minotaur
Mohrg
Ooze, black pudding
Purple worm
Scorpion, giant whip
Spider, giant sun
Spider, giant whip
Spider, Huge monstrous
Spider, subterranean sword
Svirfneblin patrol
Swarm, centipede
Troglodyte war party
Troll
Troll, cave
Umber hulk
Vampire troupe
Vaporighu
Vermin lord
Wraith
Xorn, average