Bad Man's Return — William Colt MacDonald

The Three Mesquiteers - Tucson Smith, Stony Brooke, and Lullaby Joslin - return with their special brand of triple trouble! Two gunfighters arrive in Los Potros the same day, both seeking Tucson. One is anxious to shake the hand of the man who befriended him years before. The other is a desperado looking for an opportunity to put a bullet through Tucson's heart, in revenge for a beating he once suffered. But when Tucson is shot, the evidence points to the culprit being his friend...