The Hanging Tree (Rivers of London 6)

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 . . .

Ben Aaronovitch was born in London in 1964 and had the kind of dull routine childhood that drives a man either to drink or to science fiction. He is a screenwriter, with early notable success on BBC's legendary Doctor Who, for which he wrote some episodes now widely regarded as classics, and which even he is quite fond of. After a decade of such work, he decided it was time to show the world what he could really do, and embarked on his first serious original novel. The result is Midnight Riot, the debut adventure of Peter Grant. He can be contacted at his website, http://www.the-folly.com/.