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They Came from the Deep [PLL-2]
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They Came from the Deep [PLL-2]


Taag'thrith, a powerful illithilich, desires to assimilate all knowledge. Taag'thrith plans to unleash a 10th level spell that will grant it just that-at the cost of all sentient life on the Material Plane. Will the heroes be able to traverse the dangerous corpse of a dead God, find Taag'thrith's aqueous lair, & pit their foes against one another in order to destroy the foul lich once and for all? Or will they fall prey to the threats trapped within the Eternal Spirals & sink beneath the surface forever?


They Came from the Deep is the second installment in Pretty Little Liches: a trilogy of adventures centered around three unique liches and their lairs designed for high-level play. These three lairs and the surrounding regions can be run independently as individual adventures or tied together into a mini-campaign that centers on the destruction of the Green Hand, an organization of dangerous liches.

A 3-5 hour Dungeons & Dragons 5th Edition adventure for Tier 4 (level 17-20) characters.

This adventure includes:

One-Page Setting Guide for the Corpse of a Dead Titan

12 Random Encounters for the Corpse of a Dead Titan

Battle Tactics for a 3-Stage Boss Fight

A CR 25 Illithilich with New Legendary Actions

New Mechanics for Mind Flayer Thralls

10 New Monsters, including the Xothian, an Eldritch Kraken Variant

A Table of Illithid Trinkets

4 New Magic Items

I hope you enjoy this adventure; please rate & review!

Find me on Twitter @FantasyEcology


UNLOCKED!  Copper - One-page setting guide to the Titan's Corpse & 6 additional random encounters.

UNLOCKED! Silver - The Kraken's Maw, a mini-adventure that can be used as a prologue to They Came from the Deep. Coming Soon!

UNLOCKED! Electrum - Update Pretty Little Liches: An Artifact & A Villain to expand the mini-campaign guide to Pretty Little Liches with 4 new single paragraph adventures. Coming Soon!

Gold - The Green Hand Expanded: Background & Statistics for Domvir the Farmhand Lich and inspiration for incorporating him into your campaigns.

Platinum - ???

Adamantine - ???

Pretty Little Liches Trilogy:

PLL-Greenhouse_of_Madness_Thumbnail_COPP PLL-They_Came_from_the_Deep_Thumbnail_EL The Three Faces of Night [PLL-3]

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March 18th, 2020
Loved it! Not much high quality 4th tier content is available, but this is really top notch. Really looking forward to the 3rd and final installment! [...]
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File Last Updated:
January 10, 2021
This title was added to our catalog on February 03, 2020.