Red hardcover mystery novel with blue sticker

I lost my red hardcover mystery novel 'The Silent Wharf' yesterday around 3pm near the Starbucks on Ryan Street in Lake Charles, by the Civic Center. This Books & Magazines item is 6 x 9 inches, in decent condition with slightly bent corners and a small coffee ring on the bottom edge. There’s a bright blue library sticker on the inside front cover with the call number PR6109. It has sentimental value—it was a gift from my aunt who loved to collect library editions, and I’d really appreciate getting it back.