"Pony" O'Brien, or Number 3 of the relay between two desert-bound western cities, draws his horse before his sweetheart's house and lingers somewhat longer with his packet of mail as he tells her the good news of a raise in salary which means they will soon be ready to marry. The girl is delighted and her father, coming on the scene, congratulates them and gives them his blessing. "Pony" is hardly on his way again when Jim Allison, a puncher employed by Holmes, the girl's father, approaches Mary and hesitatingly asks her to marry him. At the girl's refusal and her confession that she is already engaged, Allison turns angrily on his heel, fully resolved to leave the ranch. He looks up the old man and tells him his intentions. Holmes coolly hands him his pay and asks for no explanation. Allison, he believes, is not trustworthy, and his going is good riddance. Some time later Allison is stopped by two highwaymen, ordered to dismount and is dragged off by them through a winding, rocky ...
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