"Macadoo's response to his struggles will resonate with readers." --School Library Journal When Macadoo is just a colt, he challenges his father--a huge Belgian stallion--in order to protect his dam. From that moment on, Mac knows that his purpose in life is to help others. From surviving a kill auction to learning how to be a vaulting horse to giving therapeutic riding lessons, Mac is always patient and never loses hope in his mission to serve others--and he finds the courage to "walk on" through even the most difficult circumstances.