Sand is the story of a young girl, Willy Cameron, her horse named Sand, and her involvement with therapeutic riding. The novel begins when Willy is involved in a serious car accident and is paralyzed from the waist down. After the doctors tell her that she may never walk again, Willy becomes extremely depressed and self-pitying. Then when she is going (unwillingly) for physiotherapy, she meets a young boy, Ben, who is involved in therapeutic horseback...