Rio Grande Riptide — Roe Richmond

Lash Lashtrow was the Texas Ranger's fastest and most deadly gun. Along with sidekicks Bouchard and Canitas, Lashtrow was investigating a series of brutal murders of Mexican women, killings that were tied up with hold ups and cattle rustling alongthe border. He suspects the Iselin brothers, a pair of hired killers, but whose payroll were they on? Eventually Lashtrow is led to the mastermind behind the crimes - and finds himself up against the most deadly enemy he has ever encountered.