A is for Arsenic: The Poisons of Agatha Christie is a new book, exploring the science behind the poisons used in the novels of Agatha Christie.
Over the course of her writing career, Christie killed-off over 300 of her characters.
Some were drowned, others were stabbed, but the vast majority were poisoned.
Arsenic, Cyanide, Hemlock and Thallium – the list of poisons runs vast and wide.
Science communicator Kathryn Harkup has been studying how Agatha Christie mixed her lethal doses.
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