What happens to your life when everything you though you knew about your mother turns out to be an elaborate lie? During the long hot summer of 1976, Ruth Gilmartin discovers that her very English mother Sally is really Eva Delectorskaya, a Russian émigré and one-time spy. In 1939 Eva is a beautiful 28-year-old living in Paris. As war breaks out, she is recruited for the British Secret Service by Lucas Romer, a mysterious, patrician Englishman. Under his tutelage she learns to become the perfect spy, to mask her emotions and trust no one. Even those she loves most. Since then Eva has carefully rebuilt her life – but once a spy, always a spy. And now she must complete one final assignment. This time, though, Eva can't do it alone: she needs her daughter's help. Restless is a tour de force. Exploring the devastating consequences of duplicity and betrayal, William Boyd's gripping new novel captures the drama of the Second World War and paints a remarkable portrait of a female spy. Full of suspense, emotion and history, this is storytelling at its very finest