On a poor farm, six motherless sisters - Grace, Willa, Freya, and triplets Deedee, Darcy, and Dolly - live in fear of their cruel father. When the Full Moon Fayre visits Hollow-in-the-Marsh, there's a chance for the older girls to steal a moment's fun: they slip out to visit, and are enthralled by the shadow-puppeteer. But the day the fayre moves on, Grace vanishes. Willa goes after her, following a trail into the dangerous Lost Marsh, where it is said a will-o'-the-wisp lures lost souls into the dark waters of the mire. Can Willa save her sister and reunite her family?
