True crime with all the elements of a modern detective novel: intrigued by suspicious deaths, police hid in the home of a suspected murderer and waited. When the graying woman passed a vial of poison to an undercover informant, the police leapt into action. Her arrest would help to uncover a ring of conspirators whose crimes shocked the nation. It was January 31, 1659, and the Rome, Spana Poisoner ring was about to meet justice.