Trixie Belden #10 - The Marshland Mystery - 1962
When a child prodigy and her mean old aunt come to stay with the Wheelers, you can guarantee a mystery will follow. The child will be performing as a guest artist with the symphony, and believe it or not, she is so spoiled, she puts Bobby to shame!
After accidently running their botony teacher's herb collection, Trixie and Honey venture into Martin's Marsh to collect flowers and herbs to make her a new one.
While Trixie and Honey are exploring, they come across a burned out house near the marsh. Trixie tells Honey about the legend of Captain Kidd's hidden pirate treasure, which is supposed to be buried near the Marsh.
But when the child prodigy disappears, it's all hands on deck!
Although this is not one of my favorites, it does have an interesting, but full, storyline.