The weather is finally warming up in Sleepyside and Trixie has plans for her and her best friend Honey. They're going to lonely Martin's Marsh to collect herbs and flowers for botany class. But Honey's family has a visitor, a child who wants to tag along on Trixie's and Honey's expeditions. How can Trixie explore the mysterious burned-out house by the marsh and look for Captain Kidd's hidden pirate treasure with a kid along?
"Trixie gripped Honey's arm and held her back. 'Look at the window!' she said in a strange voice. Honey looked and felt a little shiver go down her spine. A bony hand was gesturing from between the curtains of the window next door. And, quite unmistakably, the hand was warning them to go...."
