The Pequod Review:
Anthony Berkeley (born Anthony Berkeley Cox) was an English author and journalist, who wrote some of the more innovative early detective fiction of the 1920s and 1930s. He was also a founding member of the Detection Club, a group of fiction writers that included G.K. Chesterton, Agatha Christie, Dorothy L. Sayers, and others. The club likely inspired his seventh book The Poisoned Chocolates Case, in which a group of six amateur detectives investigate a death involving a box of nitrobenzene-laced liqueur chocolates. By the time the sixth person presents their solution, it becomes clear who is responsible. Berkeley originally wrote this as a far superior short story ("The Avenging Chance"); the expanded book added conversational filler and a couple unnecessary characters.