Blue hardcover mystery novel with fox bookmark found near library

I found this blue hardcover mystery novel this afternoon around 1:20pm outside the Sierra Vista Public Library on N. 7th Street, near the bus stop by the front entrance. The cover is a little scratched, the spine creased, and the pages are slightly yellowed with age. Inside, there's a small orange felt fox-shaped bookmark wedged between chapters, and a faint library stamp on the first page with the initials 'K.M.'. If this sounds like yours, drop a note and we can figure out a pickup near the library; I’d really like to reunite it with its owner.