Exeter, 1323. A strange man is entering people’s houses at night, causing panic amongst householders. Although many had thought him harmless, now he seems to have committed murder. A man lies dead in his own home, slaughtered merely for trying to protect his children, and the folk of Exeter want this menace caught and hanged. Sir Baldwin de Furnshill suspects that the solution isn’t that simple. As the country prepares for yet another civil war, two more people are found dead and the city of Exeter shudders at the thought that there could be a killer out there, determined enough to strike again and again . . .