Blackthorn House

Blackthorn House is a 1949 detective novel by John Rhode, the pen name of the British writer Cecil Street. It is the forty eighth in his long-running series of novels featuring Lancelot Priestley, a Golden Age armchair detective.

Synopsis
A man finds that the car he has recently bought is stolen property. Even more alarmingly there is a corpse with a body concealed in it, that links to the country mansion Blackthorn House.