I just finished Curiosity Thrilled the Cat - A Magical Cats Mystery by Sofie Kelly
I enjoyed this a lot and am listed for the next two on PBS. Just a straightforward read, nothing gruesome, interesting cats. Here's the blurb:
When Kathleen Paulson leaves her life in Boston and moves to Mayville Heights, Minnesota, she has no idea that two strays will nuzzle their way into her life. Owen is a tabby with a catnip addiction and Hercules is a stocky tuxedo cat who shares Kathleen's fondness for Barry Manilow. But beyond all the fur and purrs, there seems to be something more to these felines.
When murder interrupts Mayville's Wild Rose Summer Music Festival, Kathleen finds herself the prime suspect. More stunning is her realization that Owen and Hercules are truly special -- perhaps even magical. Suddenly she's relying on their skills to solve this crime and save her reputation. With a little legwork from her four-legged friends, Kathleen may be able to solve this purr-fect murder. . .