A mind flayer has called for a massive conference of monsters in the Underdark beneath Hillsfar. Trolls, umber hulks, demons, and more have answered the illithid's call. To infiltrate this gruesome menagerie, you must embrace the monster within yourself.
A recent earthquake has brought forth ancient evil from beneath the waves, to terrorize a sleepy coastal town. People are disappearing. The heroes will sail to an ancient, steam-powered temple in the ocean. They'll encounter mad fishmen, deadly traps, and ancient horrors that slumbered until now.