Outlaw's Pledge — Ray Hogan

When bounty hunter Frank Garnett rode into town, he didn't know he was headed into a king-size frame-up, with him and his brother targeted. But suddenly his brother was dead and Frank was on the run from the law, accused of murdering the sheriff. Frank couldn't make a break for the border because he had two debts to settle. He'd sworn to save an old friend's ranch from a pack of outlaws. And he was going to clear his name by forcing the liar who'd framed him to own up to the truth - even if it took a bullet to do it...