This slim softback sourcebook for the Spire RPG. Rules for the Blood-Witch, a terrifying character class that deals in deceit, immortality and exsanguination thanks to a mystical blood disease they willingly contract in the depths of the underspire. The Demonologist extra advance, allowing any character to dabble in powers far beyond their ken and mar their eternal soul in the process. A list of demons: extra-dimensional horrors bound into unstable equipment by people who really should knowBetter. The Grangou extra advance: a hedge-witch who deals in community, fortitude, magical curry goat and a cauldron that brings people back from the dead. The Deep Apiarist extra advance: one of a sect of protectors of Spire who take pilgrimages into the Heart and fight the nightmares they encounter there, replacing their organs with waxen simulacra and filling their bodies with sacred bees. A list of occult fallout results that GMs can inflict on players that delve too deeply into the dark arts.