Dopplegangers this week on BBC Radio 7.

This week BBC Radio 7 features Katherine Cecil Thurston's espionage novel The Masquerader (1904) and Francis Durbridge's sleuth Paul Temple. Go here for the schedule or to listen.

The Irish-born Thurston (1875-1911) published six novels in her short life. The Masquerader, which appeared on US bestseller lists in 1904 and 1905, was adapted for film in 1933 and starred Ronald Colman. Sinclair Lewis compared the similarities between The Masquerader and Israel Zangwill and Lewis Cowen's The Premier and the Painter (1888) in The Critic (1905). Zangwill, of course, is best known for The Big Bow Mystery (1891).