The rival campers ashore or the mystery of the mill is an adventurous tale featuring two boys who embark on a canoeing journey from Benton to a nearby mill. The story begins with their excitement as they set off, but their journey quickly takes unexpected turns as they navigate winding streams, get caught in rain, and find themselves lost. Along the way, they face a series of challenges, including comedic misadventures and a strained relationship with a local innkeeper. After several wrong turns, they seek shelter at a mill, only to find themselves caught up in a mysterious situation involving the mill's owners. The story blends adventure and intrigue, as the boys navigate both the physical challenges of their journey and the mysteries surrounding the mill. The plot sets the stage for further exploration, with hints of deeper mysteries yet to be unraveled. Filled with youthful energy and outdoor exploration, the novel offers an engaging mix of humor, suspense, and the thrill of discovery for fans of adventure stories.