Suspicious deaths are usually not the concern of Peter Grant or the Folly, even when they occur at an exclusive party in one of London's most expensive residential blocks. But Lady Ty's daughter was there, and Peter owes Lady Ty a favor. Immersed in the foreign world of the super-rich, where the basements are larger than the houses and dangerous, mysterious items are openly traded, a sensible young officer would keep his head down and stay out of trouble. But we're talking about Peter Grant here. He has a unique opportunity to alienate old friends and create new enemies at the point where the world of magic intersects with that of the privileged. Provided he survives the week.