Pagan the Black, by Dorothy Benedict

Illustrated by John Groth. “This is a story of ranching, of the outdoor life and the joys of freedom, and it pays tribute to the loyalty and trust between a boy and a horse.”

Published in 1960 by Oliver & Boyd Ltd. Hardcover, with dust jacket intact (although slightly damaged). 189 pages of text and illustrations. Showing its age, but otherwise in good condition.