Leo Bruce

Leo Bruce is a pseudonym for Rupert Croft-Cooke (1903-1979). Under this name, Bruce wrote several mystery novels. He created two series, one featuring Sergeant Beef, a British police officer, and a second in which Carolus Deene, senior history master at the fictional Queen's School, Newminster, is an amateur detective.

Most Leo Bruce books are now out of print. Croft-Cooke also wrote a large number of books, plays, short stories, and other work under his own name.

An example of the locked room type of murder mystery, this book spoofs three famous fictional detectives, Lord Peter Wimsey, as Sir Simon Plimsoll, Hercule Poirot as Monsieur Amer Picon, and Father Brown, under the name of Monsignor Smith.

The remaining books in the series are out of print.

...
Wikipedia