Detective Nathan Cole has seen every kind of murder—until Eleanor Vance. Found dead at her desk, a cup of violet tea by her side and a cryptic note scrawled in red ink: "Not all poisons kill the body." What begins as a simple case spirals into a chilling hunt through London's rain-soaked streets, where science and obsession blur into madness. The trail leads to a vanished toxicologist, a secret research group known as Project Ichor, and a leather-bound notebook that holds formulas capable of killing not just the flesh—but belief itself. As Cole digs deeper, he's forced to confront a truth more corrosive than cyanide: that some poisons are written, not brewed—and once read, they can never be forgotten. The Poisoner's Notebook is a dark, intelligent detective thriller about obsession, science, and the fine line between cure and curse.
