A good cozy mystery featuring Owen and Hercules, two magical cats, and their Human, Kathleen. The cats’ personalities are developing and we see that the cats are different individuals. They help provide Kathleen clues in a normal cat’s way and their magic abilities are not stressed. The romance of Kathleen and Marcus is developed. The romances of the other characters are continued especially, Roma and Eddie. The Mayville Library is hosting an Art Exhibit and a temporary security system is required to protect the paintings. The night before the exhibit is to open the show director is found dead in Kathleen’s office. The most valuable painting is missing. The library and Exhibition are closed by the murder. Owen and Hercules must provide the clues for the murder so the library can be open. If you are a cat lover you will like this book, if not buy another book. This is the best book of the series.