When a renowned Egyptologist is found dead in the British Museum, DCI Ellie Blackwell and DI Ben Carter are plunged into a dangerous new war, fought not over the interpretation of history, but its very ownership. As they hunt a shadowy group of cultural guardians, they must also navigate a ruthless circle of private collectors and political operatives, forcing Ellie to confront a ghost from her own past and question the very nature of the justice she serves.