Blue queen duvet cover with white floral pattern

I found a blue queen-size duvet cover set this morning around 7:30am on the pavement outside Market Hall on Victoria Street, Derby. The fabric feels like soft microfiber, deep cobalt blue, with a clean white floral pattern along the edges and a brass zipper that works smoothly. There’s a tiny coffee stain near the bottom hem and the inner tag bears the initials 'MP'—two distinguishing marks I figured might help the owner. It’s in good condition overall, just wrinkled from the stroll; I’d love to get it back to its rightful owner.