The Masked Blackmailer (Black Heath Classic Crime) (English Edition)

Stanley Poole is the owner of a successful bus company. He is also being blackmailed over an alleged adulterous affair. Fearing exposure, he agrees to pay out. But when a plot to turn the tables on his unknown antagonist goes badly wrong, the blackmailer is forced to resort to murder. Fortunately, detective Peter Ryan and his nephew Charlie are already on the case!

Originally published in 1933, this is a classic British murder mystery from the golden age of detective fiction.