As always, Miss Norton writes an exciting story for SF readers. This reviewer was annoyed by the fact [in The Beast Master] that the author has merely rewritten a cowboy-and-Indian story in an alien situation and with the addition of SF terms and trappings: the herds, rustler nesters, trail drive, fights in the frontier saloon, plains natives, etc., etc. are all there. However, perhaps this will not bother teen-agers who have not read westerns. Also, the conclusion is the least convincing of any of this author's books, but even so, this is better than much current SF. (p. 2)

Elaine Simpson, in Junior Libraries (reprinted from the September, 1959 issue of Junior Libraries, published by R. R. Bowker Co. A Xerox Corporation; copyright © 1959), September, 1959.