Blue Penguin Classics mystery novel

I lost my blue Penguin Classics hardcover mystery novel yesterday around 3pm near the Cookeville Public Library on Broad Street, just outside the coffee shop across from the entrance. It's a Books & Magazines item—a Penguin Classics edition with a yellow sticky note tucked inside the front page and my name penciled on the back of the flyleaf. The cover is slightly scuffed, and there's an orange coffee ring near the bottom edge, plus a tiny fox doodle on a bookmark sticking out from page 214. This book means a lot to me and was helping me unwind after a rough week, so I’d really appreciate it if someone found it. If you spot it, please drop it at the library desk or message me here.