Taking Chances (Heartland #4)

Amy's life has drastically changed. She's found herself taking on the huge responsibility of running Heartland, the horse refuge that was her mother's life work. The one constant for Amy has been her friendship with Ty, Heartland's 17-year-old stable hand. But the arrival of a new hand, Ben, throws everything off balance. By the time Amy realizes she's taken Ty for granted, it could be too late.