On this island your friends and your enemies quickly end up the same . . . -1985- When fifteen-year-old Catherine sees her best friend slip from a wild cliff path she vows never to say a word. But Catherine was the last person to see her alive. -1940- Charlie is also holding back a secret from the adults on the island. As German soldiers arrive on Guernsey, he carries out an act of rebellion with consequences that will reach far into the future - and into Catherine's own life. The Book of Lies is a powerful novel about friendship, love and betrayal. Weaving together two lives across the decades, it proves that no truth is as simple as it seems.