'When the Eden College equestrian team need an extra member, Ella volunteers. She hasn't ridden much, but she loves horses and wants to support her best friend, Zoe. But when Ella joins the team at their equestrian camp, she keeps seeing a mysterious horse on the horizon. Some say he's not real. Others say he's a ghost. Can Ella help ride Eden College to victory and find out who the shadow pony belongs to?' (Publication summary)