*Now a major TV series starring Gary Oldman*'A terrific spy novel' Ian RankinTwenty years retired from the Intelligence Service, David Cartwright still knows where the skeletons are hidden. But when he forgets that secrets are supposed to stay buried, there's suddenly a target on his back.His grandson, River, is a 'slow horse', a demoted spy pushing paper at Slough House with other no-hopers. With...