Once in the course of a fallen city, an ancient obligation falls due: a party, offered as a chance to die — truly die, the way things end above the surface, not the way they end in London. The streets are filling with dusty bandages. Tomb-colonists are arriving for what may be their one last dance: the Totentanz. Hunt down the lost instruments it requires. Study its deadly choreography. Help the Withered Celebrant throw a revel held under moonlight. Satisfy the ancient power that claims authority even over the Masters. Will you learn the true steps of death and perform them?