The Mystery of Three Quarters by Sophie Hannah
Sophie Hannah resurrects Agatha Christie's Hercule Poirot in this, her latest addition to the series. I read the first of her Poirot books and was under-impressed, but for whatever reason, decided to give them another chance. This, her 3rd in the series, was surprisingly enjoyable. This is not Agatha Christie's Poirot, but he has his eccentricities and peculiarities. He's self-consciously Poirot, but he was entertaining and intelligent. Poirot returns home after lunch to be confronted by an outraged Sylvia Rule, angry that she has received a letter from him accusing her of murdering Barnaby Pandy and urging her to confess. It turns out that three more seemingly unrelated people, Annabel Treadway, John McCrodden, and Hugo Dockerill, each received the same letter. Poirot is baffled as he wrote none of the letters.
Poirot is intrigued and can't help looking into Pandy's death, an accidental drowning in his bath. Was it actually murder? If so, is one of the letter-receivers guilty? Poirot...