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.
- from the publisher's blurb