Blue Penguin Classics edition of The Odyssey

Hey, I’m worried—I misplaced my blue Penguin Classics edition of The Odyssey yesterday around 3pm. It’s a blue hardcover with gold lettering on the spine and a small coffee ring near the bottom edge. I think I left it outside the National Library of Greece on Panepistimiou Street, near Syntagma Square, after grabbing a coffee. It’s sentimental to me—my grandmother gave it to me, and I really need it back. There’s a tiny bookmark ribbon with a faded red tassel, plus a sticker on the back with my initials 'M.K.'