Publication: Dodd Mead & Company, 1927, New York
First U. S. edition. Originally published in the U.K. in 1927. Some minor foxing to the end papers, else a clean, near fine copy lacking the scarce dust jacket. A Hercule Poirot mystery novel in which Poirot finds himself embroiled in an international plot with an employee from an insane asylum who's all too eager to let him in on the secret of "The Big Four" ... a brilliant Chinese man, an American millionaire, a French woman scientist and an elusive master of disguise - a criminal conspiracy with diabolical designs.
Inventory Number: 32398