Title: City of Torment
Subtitle: Abolethic Sovereignty, Book II
Description: Lovecraftian horror from award-winning Forgotten Realms®game designer Bruce R. Cordell. Raidon Kane travels to the subterranean fortress of the somnambulant aboleths, bent  on killing the Eldest in its sleep. But he isn't the only one bound for the hidden  city. A warlock, an arch fey, a pirate, and a high priestess of the Abolethic Sovereignty  all have designs of their own on the Eldest--if they don't kill each other first. From the Paperback edition.
Subjects: Fantasy, Fiction, Forgotten realms (Imaginary place), Magic