Far beneath the towers of Sharn, in the lost regions of the Depths, lies the ancient psionic vampire Calderus. From within her hidden crypt, Calderus wields significant power in the City of Towers. Though she rarely leaves her sanctuary, she rules the Servants, a network of enslaved vampires and dominated pawns of various races. This network of spies and agents operates as her eyes, ears, and hands in the city, advancing her plots and gathering intelligence that adds to the vampire lord’s significant storehouse of information