Blue hardcover copy of The Midnight Library

I lost my blue hardcover copy of The Midnight Library yesterday around 3pm near the Diamond Jo Casino on Main Street in Dubuque. It's a 6x9 inch hardcover with a blue cloth cover, gold lettering on the spine, and a slightly creased dust jacket. There's a tiny coffee stain on the bottom edge and a red heart-shaped bookmark sticking out from page 76. Inside the back cover is a yellow sticky note with my initials 'PK' and my phone number. It was a gift from my grandmother and has sentimental value; I’d really like to get it back. If you’ve seen it, please drop me a note—thank you so much for any help.