Hercule Poirot in literature Chocolate Box" but for some reason this reference was removed from the later editions. The Poirot books are still under copyright. "The Mysterious Affair at Styles" is now public domain in the US but will not become public domain in the UK until 2046 (70 years after Christie's death). Christie's grandson, Matthew Prichard, now owns the copyright to his grandmother's works. In 2014, the Christie estate authorised author Sophie Hannah to write a new Poirot book, "The Monogram Murders". "Short story collections listed as "ss"" Poirot settles down in London and opens a private detective agency. These are the short
Agatha Christie's Poirot character with the surname Lemesurier, as a nod to the short story "The Lemesurier Inheritance", which has otherwise not been included in the Poirot series. One other short story, "The Regatta Mystery", is not included in the Suchet series, as it is not generally considered part of the Poirot canon. First published in issue 546 of the Strand Magazine in June 1936 under the title "Poirot and the Regatta Mystery" (and illustrated by Jack M. Faulks), the story was later rewritten by Christie to change the detective from Hercule Poirot to Parker Pyne. It was as a Parker Pyne mystery