Dev Devereaux had been falsely blacklisted as a train wrecker, but he'd set himself a mission: find the actual dynamiter and choke the truth out of him. Now, jaws clamped together, he was riding as a passenger in the engineer's cab. They were hurtling through Wyoming wilderness far beyond Ohama. Suddenly the engineer jerked spasmodically, his face ashen. 'Jump!' he cried. Then Dev felt himself falling...