Books like Castle to Castle

It is Germany near the end of World War II, the Allies have landed, and members of the Vichy France government have been sequestered in a labyrinthine castle, replete with secret passages and subterranean hideaways. The group of 1,400 terrified officials, their wives, mistresses, flunkies, and Nazi “protectors”—including Céline, his wife, their cat, and an actor friend—attempt to postpone the postwar reckoning under the constant threat of air raids and starvation.