Death Rides the Rio Grande (Walt Slade, Texas Ranger)

Walt Slade—Texas Ranger
Three men dead—and Walt Slade, ace Texas Ranger, the only living witness to one of the worst killings in the Rio Grande country. In horror he watched, from the crest of a distant ridge, the brutal robbery and massacre of three helpless ranchmen. Too far away to help the men…but close enough to spot the outlaw gang and the bandit leader’s familiar face.
That’s the work of the worst owlhoot in all of Texas, Slade thought, and now I’ve got another score to settle with Veck Sosna!
And so Walt Slade, lone lawman, rode a violent, bloody rail—unaware that waiting for him was the deadliest revenge an outlaw could ever take!
A classic western fiction novel.