Mary's sister Betty (with whom she lives ) go to a reception the evening a benefit gala to put a new roof on the glass museum in Ivy Bay. Betty's late husbands' sister is their as the main hostess with her grandson Thomas. This is in the winter and there is a call that a boat is burning on the water. Most of the men and all the police go to search but do not find any victims because it is a hoax. Why the hoax was pulled is soon evident. Mary investigates and finds out some facts that she rather not know.