in Agatha Christie's Secret Notebooks by John Curran. In the US, nine of the stories were first published in the weekly newspaper supplement This Week magazine in two series of four stories each, plus one later publication as follows: "The Lernaean Hydra": 3 September 1939 under the title Invisible Enemy "The Girdle of Hippolyta": 10 September 1939 under the title The Disappearance of Winnie King "The Stymphalean Birds": 17 September 1939 under the title The Vulture Women with an illustration by C.C. Beall "The Cretan Bull": 24 September 1939 under the title Midnight Madness "The Erymanthian Boar": 5 May 1940 under the title Murder Mountain "The Apples of the Hesperides": 12 May 1940 under the title The Poison Cup "The Arcadian Deer": 19 May 1940 under the title Vanishing Lady with an illustration by C.C. Beall "The Flock of Geryon": 26 May 1940 under the title Weird Monster "The Capture of Cerberus": 16 March 1947 under the title Meet Me in Hell In addition, two other stories were first published in the US unillustrated in Ellery Queen's Mystery Magazine as follows: "The Nemean Lion": September 1944 (volume 5, number 18) under the title "The Case of the Kidnapped Pekinese" "The Horses of Diomedes": January 1945 (volume 6, number 20) under the title "The Case of the Drug Peddler" References External links The Labours of Hercules at the official Agatha Christie website Hercule Poirot short story collections 1947 short story collections Collins Crime Club books Dodd, Mead & Co. books Fiction about cults Heracles in fiction