The Robthorne Mystery, first published in 1934, is part of the series of mysteries featuring private detective Dr. Priestley. Author John Rhode, a pen name of Cecil Street (1884-1964), was a prolific writer of mostly detective novels, publishing more than 140 books between 1924 and 1961.
When one of the Robthorne twins commits suicide, there is a question over which one it is and whether it was, in fact, suicide or murder. From the dustjacket: Dr. Priestley, well-known crime investigator, is called in to solve the mysterious death of Mr. Robthorne, who has been found shot in the greenhouse of his country estate. A chain of damning evidence that Dr. Priestley pieces so successfully together forms one of the finest examples of crime detection that Mr. John Rhode has yet produced.
Mystery story by John Rhode (Cecil Street) featuring Dr Priestley, Jimmy Waghorn and Superintendent Hanslet.