Where the Marble Arch stands today in London was once the Tyburn gallows—also known as The Hanging Tree. The walk toward those gallows along Oxford Street and past the Mayfair mansions has a bloody and haunted history as the last trip of the condemned. Some things never change. For both blood and ghosts have returned to those mansions of the super-rich. And it’s up to Peter Grant—England’s last wizard and the Metropolitan Police’s reluctant investigator of all things supernatural—to get to the bottom of the sinister doings.
Suspicious deaths are not usually the concern of PC Peter Grant or the Folly, even when they happen at an exclusive party in one of the most expensive apartment blocks in London. But Lady Ty's daughter was there, and Peter owes Lady Ty a favour. Plunged into the alien world of the super-rich, where the basements are bigger than the house and dangerous, arcane items are bought and sold on the open market, a sensible young copper would keep his head down and his nose clean. But this is Peter Grant we're talking about. He's been given an unparalleled opportunity to alienate old friends and create new enemies at the point where the world of magic and that of privilege intersect. Assuming he survives the week ...