London, Gollancz, 2019. First edition, first impression. Hardback. A fine copy. A novella in the Peter Grant series (also known as the Rivers of London books). Signed by the author without inscription. A lovely copy. Ben Aaronovitch (1964-) hit the radar of many a fantasy reader with Rivers of London, an urban fantasy involving PC Grant a London police officer / magician. He's also written a number of Doctor Who books and TV episodes. [11450, Hyraxia Books].