A classic from the Golden Age of Detective Fiction. “One of the best books by a mystery novelist whose work is always of first rank.” —The New York Times   Something is afoot at the Ivory Gallery in London. A string of suspicious incidents—a Kang-Tse vase broken, a specially commissioned catalog burned, and now a painting slashed—has young Frances Ivory on edge. She suspects that the instigator is her stepsister’s husband, Robert Madrigal, but there’s not much she can do about it while her father is out of the country.   Robert is even interfering in Frances’s love life, encouraging her to marry his loathsome assistant. To stop his infernal matchmaking, Frances agrees to a sham engagement with the painter whose work was defaced. But when Robert disappears after a confrontation with the artist, he’s found stashed in a cupboard, dead. Frances is now drawn into a mystery that will have her second-guessing her family, her fiancé, and even herself . . .   Praise for Margery Allingham   “Margery Allingham stands out like a shining light.” —Agatha Christie   “The best of mystery writers.” —The New Yorker   “Don’t start reading these books unless you are confident that you can handle addiction.” —The Independent   “One of the finest Golden-Age crime novelists.” —The Sunday Telegraph