History & The Arts
Killed by Agatha Christie: Strychnine and the detective novel
...course, was left sitting on a hall table so that almost anyone in the house could have poisoned it. And the coffee theory set up another poisonous puzzle. Strychnine is a notably fast-acting poison; in animals, symptoms often arise within 30 minutes, according to the Merck Veterinary Manual. In humans, as soon as 15 minutes after ingestion, according to the U.S. Centers...