Conway Jackson, amateur criminologist, receives a disturbing letter from his uncle, Sir James Gleeson, informing him that he feels himself to be in terrible danger, and imploring him to come to his country manor. Unfortunately, the letter has taken some time to reach him, and it shows unmistakable signs of having been steamed open. On his arrival, Jackson learns that his uncle was found strangled in his bedroom the night before - by what appears to be an inhuman monster that is destined not to stop at a single victim...
Gerald Verner is one of the pseudonyms used by John Robert Stuart Pringle, who was born in Streatham, London, on 31 January 1897.
In his early writing days he used the name Donald Stuart, under which name he wrote 44 stories for the Sexton Blake Library as well as six stories for Union Jack and three for the Thriller magazine. In addition he wrote two stage plays, 'Sexton Blake' and 'The Shadow', two films, 'The Man Outside' (1933) and 'The Shadow' (1933) under the Stuart name. Later a number of his books were adapted for radio serials, stage plays and films.
He became a hugely successful thriller writer, producing more than 120 novels that were translated in 35 languages. The Duke of Windsor was a big Verner fan and at one time he was presented with 15 volumes specially bound.
Heavily influenced by Edgar Wallace, he wrote extensively for magazines such as Detective Weekly, the Sexton Blake Library, Union Jack and The Thriller. He also adapted Peter Cheyney's 'Meet Mr Callaghan' and Agatha Christie's 'Towards Zero' for the stage.
He also used the pseudonyms Thane Leslie, Derwent Steele and Nigel Vane.
He died at Broadstairs, Kent, of natural causes on 16 September 1980.