The River House Mystery by Gerald Verner
But when he begins receiving threatening letters signed with a drawing of a man hanging from the gallows, he starts to fear for his own safety. Inviting private investigator Trevor Lowe to his riverside home, he begs him to find out who’s behind the letters.
When Hammond’s houseguest, actress Venita Shayne, is found strangled in his study the next day, the threats become all too real and Hammond decides to divulge further information to Lowe – but then he too is murdered…
Gerald Verner (1897-1980) was the pseudonym of British writer John Robert Stuart Pringle. Born in London, Verner wrote more than 120 novels that have been translated in over 35 languages, and many of his books have been adapted into films, radio serials and stage plays. Verner also wrote forty-four Sexton Blake tales.