Toronto: The Ryerson Press, 1920. First Canadian edition of the AUTHOR'S FIRST BOOK and first to feature Belgian private detective Hercule Poirot. Issued from sheets of the true first edition (NY; John Lane, 1920) and preceding the London edition (Bodley Head, 1921). We record only one other copy offered for sale and are able to locate only one copy in libraries. Recased with new endpapers added, lettering touched up and cloth coated. Spine a little tanned otherwise near fine. Housed in matching clamshell case lined in silk. Rare. THE FIRST APPEARANCE OF POIROT.