While Jemma continues to search for her missing husband, the citizens of historic York are shocked by a series of vicious crimes at the city's two museums. A bungled break-in at the Yorkshire Museum is quickly followed by the brutal murder of Lance Richards, a sub-curator at the neighbouring Castle Museum. The main suspect is Anthony Gill, a quiet and unprepossessing clerk. But Gill doesn't have an alibi and is uncooperative with the police. His desperate lawyer hires Jemma and Bobbie from to prove his innocence. Meanwhile, the two women are led a merry dance by Jodie, a famous and spirited actress, whose aristocrat husband wants evidence for a divorce. As the nation waits nervously to hear the fate of their sons and brothers trapped at Dunkirk, a twisting series of events whisk Jemma and Bobbie through the glamourous world of the starlet, down corridors of dusty fossils and into terrifying danger. Vengeful passions and a dark crime lie beneath the civilised veneer of those elders who preserve our history. But if Anthony Gill didn't murder Lance Richards, who did - and why?