Known as "The Cowboy Author," Walt Coburn grew up in the cow country just as it was beginning to pass from sight. here are three of his finest short novels. In He Rides Lone," Bruce McTavish's confrontation with his own wild ways takes place on the frontier in Arizona, where he has fled from a possible charge of murder in Montana. The setting for "The Badlands Buckaroo" is northern Mexico, where the followers of Brother Matthew are seeking the promised land. Brother Matthews' background is in larceny and murder, but he's very convincing in his present guise of prophet. "cCoffin Ranch is a tale of the Wild Bunch, some of whom Walt Coburn knew. Blamed for a train robbery inMissouri while they were in South America, the Bunch returns when a dying man's confession reveals the hiding place of the loot.