Book 6 in the Rivers of London series, from Sunday Times Number One bestselling author Ben Aaronovitch.

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 . . .

Praise for the Rivers of London novels:

'Ben Aaronovitch has created a wonderful world full of mystery, magic and fantastic characters. I love being there more than the real London'

NICK FROST

'As brilliant and funny as ever'

THE SUN

'Charming, witty, exciting'

THE INDEPENDENT

'An incredibly fast-moving magical joyride for grown-ups'

THE TIMES

Discover why this incredible series has sold over two million copies around the world. If you're a fan of Terry Pratchett or Douglas Adams - don't panic - you will love Ben Aaronovitch's imaginative, irreverent and all-round irresistible novels.