Red paperback copy of The Great Gatsby, worn

I lost my red paperback copy of The Great Gatsby yesterday around 3pm outside the Starbucks near Fashion Show Mall on the Las Vegas Strip. It's a well-loved edition with a coffee stain on the front cover, a creased spine, and a blue bookmark with a tiny silver charm sticking out between pages 128 and 129. This book means a lot to me—it's my late grandmother's favorite and I used to read it with her on road trips, so I really need it back. If anyone found it, please drop it off with the mall security or message me here; I’m hoping to reunite with it soon.