["The Black Stallion Mystery" is] a rather sinister story of revenge and the resurrection of a horse. This book rounds out Walter Farley's baker's dozen of very readable horse stories, but the melodrama is overdone. This reader hopes Mr. Farley's next volume will be more cheerful.

Marjorie Burger, "Mission to Spain: 'The Black Stallion Mystery'," in The New York Times Book Review (© 1957 by The New York Times Company; reprinted by permission), October 13, 1957, p. 51.

Among the skills which the jet-age has forgotten is that highly disciplined and demanding profession of horse taming. In [The Horse Tamer], Henry Dailey traces the high points of his brother Bill's career, his bold genius in making the wildest, most rebellious animal yield to the reins of a master…. Walter Farley writes with his usual vigor and comprehension of horses and the men who are dedicated to them, filling his story with believable adventure...