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
The Regatta Mystery short story." An unnamed reviewer in the "Toronto Daily Star" (30 June 1939) wrote, regarding the title story "The Regatta Mystery", that "Agatha Christie succeeds in baffling her readers ... [B]ut far from plausible is her solution", and went on generally to say, "The author is handicapped by attempting to compress her plots into 27-odd pages each. Nor has she opportunity for continued suspense." The original version of "The Regatta Mystery" featured Hercule Poirot. The story was later rewritten by Christie to change the detective from Poirot to Parker Pyne for book publication and all collections in both the US