Hercule Poirot met his lifelong friend, Captain Arthur Hastings, and solved the first of his cases to be published, "The Mysterious Affair at Styles". It is clear that Hastings and Poirot are already friends when they meet in Chapter 2 of the novel, as Hastings tells Cynthia that he has not seen him for "some years". Particulars such as the date of 1916 for the case and that Hastings had met Poirot in Belgium, are given in "Curtain: Poirot's Last Case", Chapter 1. After that case, Poirot apparently came to the attention of the British secret service and undertook cases for the
Hercule Poirot for five or six people to be on the spot when B is murdered and all have a motive for killing B." She first met Poirot in the story "Cards on the Table" and has been bothering him ever since. Poirot's secretary, Miss Felicity Lemon, has few human weaknesses. The only mistakes she makes within the series are a typing error during the events of "Hickory Dickory Dock" and the mis-mailing of an electricity bill, although she was worried about strange events surrounding her sister at the time. Poirot described her as being "Unbelievably ugly and incredibly efficient. Anything that