A Is for Arsenic: The Poisons of Agatha Christie

Former research chemist Harkup examines the gamut of poisons successfully employed in Agatha Christie's mysteries. Each of the 14 chapters takes us through the history of a toxic chemical element, molecule, or class of compounds, its physiological effect (including possible medicinal uses at proper dosages), notable real-life murders, and a synopsis of how it was employed in Christie's work. Care is taken to not name the murderer, though twice "spoiler" warnings are given when revealing the culprit is inevitable. On a few occasions the author points out where Christie may have taken liberties for plot convenience, but Christie's own training as a pharmaceutical assistant served her remarkably well in crafting scientifically accurate tales. Appendixes include a list of Christie's stories with causes of death noted and another of chemical structures of compounds. Michael Gerald's The Poisonous Pen of Agatha Christie covers similar ground but aims for a more exhaustive inventory and readability suffers a bit.