I was recommended this book when I asked for recommendations for "cosy mysteries". I believe this book is permanently free.
This is the story of Hilda who accidentally kills her lodger, then decides that's a good career move and starts knocking her lodgers off. The police are after her, but she is wiley and escapes and is on the run from them.
It's only about 64 (old fangled) pages long but was a decent read for a short story. I really enjoyed it and would probably read more, but not at £1.30 for each story.