Rider of the High Hills — Max Brand

Odd Man In! Reata had nothing to do with the bank robbery. He's been going straight until he was lured by lies into recovering the cache of gold the outlaws had stolen. If he returned the loot to the bank, he's be tight with the Law, but the outlaws would see to it that he's be dead right.

Reata had a quick mind, and even quicker lariat arm and the fastest horse around. But what good is speed, when you're surrounded?