Restless, an espionage novel by William Boyd, was published in 2006 and won the Costa Prize for fiction. It is the story of a mother revealing to her daughter, in a series of written accounts, that she is not all that she seems to be. She is not Sally Gilmartin, as widely supposed, but Eva Delectorskaya, a half-Russian/half-English émigré co-opted after her brother Kolia's murder at an Action Francaise meeting, by Lucas Romer, working on behalf of the British secret services, in the run-up to the Second World War.