The Paint Horse — Trudy Nicholson

Before Lucy found her wild White Cloud Station horse, Hope, she had a well-loved, black-and-white paint riding horse. But Paintbox was taken from her by his spiteful former owners and there was nothing Lucy could do. Despite having Hope, Lucy never got over losing Paintbox. The worst part was, she had no idea what became of him until, one day, a mysterious letter arrives….
www.whitecloudstation.com
A White Cloud Station short story.