Blue paperback mystery novel with yellow bookmark

I lost my blue paperback mystery novel yesterday around 3pm. I was walking along Monroe Street near the Capitol in downtown Tallahassee and must've dropped it between the Capitol and Cascades Park. It's a 6x9 inch paperback with a creased spine, a yellow ribbon bookmark peeking out, and a small coffee stain on the back cover. The inside front page has a handwritten note with 3/17 on it. It was a gift from my aunt who passed away last year, so it means a lot to me. If anyone found it, reply to this listing or email me at [email protected].