Restless

Boyd's ninth novel, an absorbing historical thriller, is loosely based on the history of a covert branch of British intelligence created to coax America into the Second World War. The story unfolds on parallel tracks as Sally Gilmartin, born Eva Delectorskaya, a Russian emigree recruited into the British Secret Service in 1939, reveals her clandestine past in an autobiography that she gives to her daughter, Ruth, a graduate student and single mother living a dull civilian life in Oxford in 1976. These installments give the narrative momentum (the accounts of Ruth's daily life drag, by contrast) as Eva describes the taciturn spy who recruited and trained her before becoming her lover; her secret propaganda work in New York; and the act of duplicity, almost deadly, that forced her to flee to England and live under an assumed identity. Ruth barely has time to process the shock of her mother's secret before she is swept into a dangerous game: finding her mother's betrayer before it's too late.