The toll bridge

Young adult novel To escape the pressures of suffocating parents and a possessive girlfriend, seventeen-year-old Piers takes a job as a keeper of a toll bridge and its cottage. There he befriends Adam, a charismatic wayfarer who shows up one day and refuses to leave. He also befriends a girl named Tess, and soon he and Tess find themselves strangely attracted to Adam and falling under his spell.