Set on Nova Scotia's wild and windswept eastern shore, this book tells of Kelsie MacKay and her plans to swim Caspar to a mysterious deserted island before his owner ships him off for auction.

Meg is just about to leave Mustang Mountain Ranch when Ruby Tucker, owner of a neighbouring lodge, falls ill. Together with Thomas, Meg must help run the lodge and look after Ruby's rambunctious 10-year-old stepson, Tyler. Tyler creates all kinds of trouble when he opens a gate and lets the ranch horses out. As they search for the horses, Thomas discovers that someone is catching wild horses and carting them away. Thomas suspects Tyler's brother Brett...