When sixteen-year-old Wren Ashby moves to the mill town of Hallowford, she discovers Crimson Hill—a place haunted by ghosts bound to broken promises. With the help of two local teens, Wren uncovers a century-old cover-up tied to a deadly quarry explosion and a chilling rule: every ghost needs a witness or a final word. As a developer threatens to erase the truth forever, Wren must decide whether to stay silent—or let the hill finally speak. A gripping young adult ghost story about memory, courage, and justice.