Davidson, Jenny

In Scotland in the 1930s, fifteen-year-old Sophie, her friend Mikael, and her great-aunt Tabitha are caught up in a murder mystery involving terrorists and suicide-bombers whose plans have world-shaping consequences.

In an alternate 1930s Europe, sixteen-year-old Sophie and Mikael, now more than a friend, investigate her parents' death, setting off a chain of events that unravels everything she thought she knew about her family, and involving them in international intrigue and the development of the atomic bomb.