The brand new novella in the Sunday Times #1 bestselling Rivers of London series. Details to be revealed soon: stay frosty... PRAISE FOR BEN AARONOVITCH & THE NUMBER ONE BESTSELLING RIVERS OF LONDON SERIES: 'Highly entertaining' SUNDAY EXPRESS 'Charming, witty, exciting' THE INDEPENDENT 'Ben Aaronovitch has created a wonderful world full of mystery, magic and fantastic characters' NICK FROST 'As brilliant and funny as ever' THE SUN 'An incredibly fast-moving magical joyride for grown-ups' THE TIMES 'Funny and wildly inventive' MAIL ON SUNDAY