The Double Turn (1956) by Carol Carnac

Last year, the British Library Crime Classics reprinted E.C.R. Lorac's Murder As a Fine Art (1953), published as by "Carol Carnac," which proved to be an excellent accessory to their run of Lorac reprints with an unusual plot and memorable impossible crime – bringing brutalism to the fine art of murder. So was pleased when they announced a reprint of the Carol Carnac title, The Double Turn (1956), that has been a longtime resident on my wishlist.The Double Turn, also published as The Late Miss Trimmings, begins when Jocelyn Truby takes his niece, Susan Truby, and her friend Peter Raven to an exhibition of Victorian era paintings in the long gallery of Verulam House. They're admiring a huge canvas by one of the period greats, Adrian Delafield, "shown in the Academy of 1898." Susan is impressed with the grandeur and age of the painting ("gosh, that was last century"), while Jocelyn tells them the Great Victorian is still alive. As they're discussing Delafield, they are joined by a young…