The brand new novella in the much-loved and #1 bestselling Rivers of London series!Ghost hunter, fox whisperer, troublemaker.It is the summer of 2013 and Abigail Kamara has been left to her own devices. This might, by those who know her, be considered a mistake. While her cousin, police constable and apprentice wizard Peter Grant, is off in the sticks, chasing unicorns, Abigail is chasing her own mystery. Teenagers around Hampstead Heath have been going missing but before the police can get full...