Murder by Numbers

And then there was one . . . can Donald Langham and Maria Dupré stop a killer who's picking off victims one by one?

December, 1956. Donald Langham's wife Maria Dupré receives a chilling invitation to attend a death at the home of Maxwell Falwell Fenton in Essex. The once—prominent artist has a number of enemies, and has faded into obscurity since the war ended. Is the invitation to his own death or someone else's?

Arriving at Winterfield on a cold winter evening, Donald and Maria meet five ...