Fiona invites Tilly over to her bar to see the renovations she has planned. They go into the kitchen and find Holly, the health inspector dead after being conked on the head with a bag of frozen ravioli. Unfortunately, Fiona is on the suspect list because it is known that Holly had been harassing Fiona with nuisance infractions. Tilly knows her friend would not harm a soul and sets out to prove it. There is the additional problem of the burglaries plaguing the businesses in Belle Harbor. Tilly wants to know who is behind them so they can be stopped. Mousse and Mayhem by Sue Hollowell is the eleventh A Belle Harbor Cozy Mystery. I was able to read it as a standalone, but I missed the backstory on the characters. I believe it would have been better if I had read the earlier books in the series. Mousse and Mayhem is a lighthearted cozy mystery. I enjoyed the descriptions of the charming Belle Harbor. It sounds like a lovely town to work and live in. There is humor scattered throughout the story which I enjoyed. The mystery was straightforward. I liked that Tilly asked questions and looked for clues. When Tilly came up with the solution it seemed so sudden. Of course, that can happen when you suddenly realize one detail is important. I enjoyed the reveal of the guilty party. The story is short in length which makes it a quick read. There were tantalizing descriptions of the items Tilly creates in her bakery. I could tell that Tilly loves her uncle. She wanted to make sure his wedding to Linda is perfect. Mousse and Mayhem is a sweet cozy mystery with a bevy of baked goods, an exterminated health inspector, bewildering burglaries, gambling goals, wedding worries, and a steadfast friend who is determined to sleuth. ( )