The Goose's Gold (A to Z Mysteries #7) (Prebound)
Sun, sand -- and sunken treasure? When Dink, Josh, and Ruth Rose go to Florida on vacation, they hear someone's found an old shipwreck. Two men are collecting money in order to bring up the gold, and they're promising to share whatever wealth they find beneath the waves. Is the offer too good to be true? It's up to Dink and his friends to get to the bottom of it.