Moon Over Soho is the second novel in the Peter Grant series by English author Ben Aaronovitch. The novel was released on 21 April 2011 through Gollancz and was well received. Plot Following the events of Rivers of London Police Constable and apprentice wizard Peter Grant is called in to help investigate the brutal murder of a journalist in the downstairs toilet of the Groucho Club in London's Soho district. At the same time Peter is disturbed by a number of deaths of amateur and semi-professional jazz musicians that occurred shortly after they performed. Despite the apparently natural causes of death each body exhibits a magical signature which leads Peter to believe that the deaths are far from natural. Characters Returning characters Police Constable Peter Grant; an officer in the Metropolitan Police and the first official wizard's apprentice in sixty years. Police Constable Lesley May; an officer in the Metropolitan Police. Currently on medical leave due to injuries suffered in the course of an earlier case. Detective Chief Inspector Thomas Nightingale; head of the Folly and the last officially sanctioned English Wizard. Molly; The Folly's domestic helper, of unknown species. Dr Abdul Haqq Walid; world-renowned gastroenterologist and cryptopathologist. Detective Sergeant Miriam Stephanopoulos; case officer of the Belgravia Murder Investigation Team and de facto Senior Investigating Officer. Frank Caffrey; LFB (London Fire Brigade) Fire Investigator, ex-para and a key "associate" of the Folly. Cecilia Tyburn Thames; aka Lady Ty, "daughter" of Mama Thames and goddess of the River Tyburn. Oxley; one of the "sons" of Father Thames and his chief negotiator. Ash; a "son" of Father Thames and god of the River Ash. Characters introduced in this novel Harold Postmartin D.Phil., F.R.S.; official archivist and historian of English Wizardry; he operates out of the Bodleian Library. Detective Constable Sahra Guleed; a junior member of the Belgravia Murder Investigation Team. Detective Chief Inspector Zachary Thompson; acting Senior Investigating Officer Belgravia Murder Investigation Team. Detective Constable David Trollope; Peter's liaison with the Norfolk Constabulary. The Pale Lady; an assassin working for the Faceless Man who kills by excising the penis of her male victims with her vagina dentata. Olympia and Chelsea; school age twin "daughters" of Mama Thames and goddesses of Counter's Creek and the River Westbourne respectively. Derek "Max" Harwood; jazz bass player and founder member of Lord Grant's Irregulars jazz quartet. Daniel Hossack; teacher at Westminster School, jazz musician and founder