Blue hardcover mystery novel with gold lettering

I lost my blue hardcover mystery novel yesterday around 3pm near Bookmarks on Trade Street in downtown Winston-Salem. It's a 6x9 inch edition with a dust jacket that has gold lettering, and there's a small coffee stain on the bottom edge. Inside, a pressed yellow flower is tucked between pages 122 and 123, a tiny clue I forgot to note before leaving. It was a gift from my grandmother and holds a lot of sentimental value, so I really need it back. If you found it, please reach out to [email protected] — I can offer a small reward.