I read a different version of the audio book narrated by Joan Hickson, the actress that played Miss Marple perfectly. This is a collection of 13 stories with one of my favorite storytelling tropes: a group of people gather together, usually over drinks and/or dinner, and solve a mystery submitted by one of the company. Everyone discounts Miss Marple because she's a gentle maiden lady who lives primarily in St. Mary Mead, a small village. Of course, with her village situations analogies, she often sees through the extraneous stuff to solve the whole thing.
One of the diners finally sees through her and often challenges her to come forth with the solution sooner than later. A very enjoyable collection of stories.