This summer adventure takes hold when Bridget, Peter, Gracey and Anna set off on an Adirondack canoeing and camping trip. Together they learn of the ghostly spirits that may still live along the Raquette River as they sing and paddle along their trip. All of the friends have great imaginations that lead to some fun nighttime antics when they stop to camp overnight. The next day, Bridget takes off on a path alongside the falls to get away from the boys teasing her about her bathing suit. She finds herself alone on a trail by the falls, where she discovers someone in grave trouble and has to take quick action. Suspense builds as she comes to understands the sign they had seen the day before that warned of dangerous falls ahead.