Blue North Face backpack with hedgehog sticker

I lost my blue North Face backpack yesterday around 3pm near the Watertown Public Library on Oak Street. It's a medium-sized backpack with faded blue fabric, black trim, and a slightly squeaky zipper. There's a small hedgehog sticker on the inner pocket and a dent on the lower left corner. Inside I kept a gray laptop sleeve, a charger, and a photo of my grandmother—this bag has sentimental value to me, and I really need it back. If anyone found it, I’d be grateful to arrange a meetup downtown to return it.