Conspiracy

Murder by Experts is a 1936 mystery thriller novel by the British writer Anthony Gilbert, the pen name of Lucy Beatrice Malleson. It launched her long-running series featuring the shady London lawyer and detective Arthur Crook. Although she had been writing since 1926 this was her first major popular success. The plot revolves around collectors of Chinese antiques.

Wikipedia. CC BY-SA 4.0. Updated May 18, 2026.

“Conspiracy.” Murder By Experts. Radio broadcast, April 24, 1950.