The Thirteen ProblemsThe Tuesday Night Club is a venue where locals challenge Miss Marple to solve recent crimes One Tuesday evening, a group gathers at Miss Marples house and the conversation turns to unsolved crimes The case of the disappearing bloodstains; the thief who committed his crime twice over; the message on the death bed of a poisoned man which read heap of fish; the strange case of the invisible will; a spiritualist who warned that Blue Geranium meant death