Dare you brave "The Sinister Spire"? "The Sinister Spire" is the second of a three-part adventure arc that started with "Barrow of the Forgotten King," but is easily played as a stand-alone adventure. Chasing the tomb-robbers from "Barrow of the Forgotten King" into the Underdark, the heroes stumble upon a desolated subterranean city with a dark secret. This 64-page adventure is designed for 4th-level characters and uses a combat encounter format designed to make the DM's job easier.