When Dr. Leon Sterndale said there was only one known specimen of radix pedis dioaboli – devil's foot root – in a laboratory in Buda, it was clear that it was a poison unknown to science.
Just what was it that was "used as an ordeal poison by the medicine-men in certain districts of West Africa"? Dr. Robert Ennis had an idea related to a substance we know well today, based on his observations in emergency rooms. And it's anything but a Trifle.
