Blue paperback with library stamp

Found a blue 6x9 paperback this afternoon around 2:30 pm outside the Rapid City Public Library on 4th Street in Rapid City, West SD, near Mount Rushmore Road. The cover shows a simple night-sky design and the spine has faded white lettering; the pages are lightly dog-eared and there’s a coffee ring along the bottom edge. Inside, there’s a library stamp on the first page reading 'RCPL' and a small doodle of a coffee cup on page 97, plus a green sticky note tucked between pages. It looks well-loved, and I’d love to reunite it with its owner—happy to drop it at the library desk or meet nearby.