Misled by a madman's letter, the Jenkins brothers were obsessed with the desire for revenge. They believed that their brother George's death in Korea was the result of sadism on the part of Colonel Frank Baker --now a ranchowner. Determined to murder him they insinuate themselves into his ranch posing as handlers of Snow King and Snow Queen, two valuable pure white Lippizan horses. But with the help of Kim Soo, a Korean refugee whom the Colonel treated as a foster son, and Tommy Baker, his own teen-aged boy, the Colonel's life is saved. Despite a contrived and far-fetched plot, action triggers action, dialogue rebounds spontaneously and there's no doubt whatever that boys --even those who eschew reading-- will follow every echo of the horse's hoofs, every cracking rifle shot --goggle-eyed. Walter Farley fans, please note.