Red leather sketchbook with brass compass charm

I found this red leather sketchbook this afternoon around 3:15pm on the sidewalk outside the Arcata Plaza on G Street. It's about 5x7 inches, with a brass compass charm hanging from the spine and a blue ribbon bookmark sticking out. The cover is etched with the initials 'L.M.' and there’s a pressed fern tucked inside between the pages. It feels sentimental, and I’d love to help get it back to its owner—if you recognize it, tell me the initials and the page where the fern was placed.