Dominion, written by C.J. Sansom, is an alternative history mystery set in a Britain that surrendered to Nazi Germany during World War II. The story takes place in the 1950s, where the country is under authoritarian rule. Against this backdrop, a civil servant named David Fitzgerald becomes embroiled in a murder investigation that leads him to uncover a dangerous conspiracy. Sansom's meticulous attention to historical detail and his ability to create a tense atmosphere make Dominion a gripping alternative history mystery.