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 Frontier Encounter List

Underdark Frontier Encounter List

Possible list of encounters in the Frontier areas of the Underdark. Frontier areas are lightly settled tunnels or caves, but communities are small and far apart, usually separated by miles of tunnels. Occasional larger forts maybe present to give warning to larger settlements in the distance.

Abishai, black
Ankheg
Baphotaur
Bat, deep
Baneguard
Beholder, gauth
Bodak
Bugbear band (hunters, scouts, family group)
Chitine hunters
Cildabrin
Cloaker
Cockroach, giant
Desmodu
Dire corbie
Dragon, juvenile deep
Dragon, juvenile copper
Dragon, young adult black
Dragon, young red
Dragonkin
Drow scouts
Duergar marauders, scouts, hunting party, miners
Earth Glider
Ettin
Foulwing
Ghaunadan
Giant, phaerlin
Giant, stone
Gloura
Goblin war party
Grick
Grimlock hunters
Gray render
Hound of the gloom
Lamia
Lurker
Lurking strangler
Medusa
Metalmaster
Mind flayer
Mindshredder larva
Mohrg
Nifern
Nycter
Ooze, black pudding
Otyugh
Phaerlock
Psurlon, average
Raggamoffyn, shrapnyl
Reason stealer
Roper
Roper, prismatic
Scorpion, giant whip
Skindancer
Slaad, red
Spellgaunt
Spider, harpoon
Spider, Large monstrous
Spider, giant sun
Spider, giant whip
Spider, shadow
Spider, subterranean
Stonesinger
Susurrus
Svirfneblin patrol
Swarm, bat
Swarm, swamp strider (near lakes, rivers, and other wet/swampy areas)
Troglodyte war party
Troll
Troll, cave
Umber hulk
Vampire spawn
Vermin lord
Wererat troupe
Wraith
Xorn, average

Underdark: Settled Area Encounters

Underdark: Settled Area Encounters

Settled Underdark areas would be a large cavern with a city or several small villages. It could be on the edge of a larger city or fortress and maybe heavily patrolled. Most likely the lesser creatures and undead will be Illithid or Drow slave parties, sometimes accompanied by one or two of that race to control them.

Allip
Boggle
Baneguard (Undead)
Baphitaur
Barghest
Basilisk
Beholder, gauth
Bugbear
Carrion crawler
Centipede, Large monstrous
Chitine
Cildabrin
Darkmantle
Derro
Dire Corbie
Dragon, juvenile black
Dragon, young deep
Drow scouts
Duergar
Fungus, violet
Gargoyle
Ghast
Ghoul
Gibberling
Grick
Hell hound
Howler
Ibrandulin
Illithid (Mind Flayers)
Lith
Meazel
Minotaur
Phaerlock
Quaggoth
Roper
Rothe, deep
Shadow
Spawn of Kyuss
Spider, Large monstrous
Swarm, bat
Troglodyte
Troll
Troll, cave
Umber hulk
Vampire spawn
Vargouille
Vermin lord
Wererat troupe
Wight
Winter wolf
Wraith
Wyste
Xorn, minor
Zombie, medium