problem. Tommy watched him silently, warily, without fear. He had ceased struggling because it was useless but his mind was alert. He had no way of knowing the Martian was in a quandary. He had been sent to check the tunnel entrance in the stone hutch on the Wilks farm. But he had come upon Tommy halfway to his objective. Should he take Tommy to his superiors, or finish his original mission? It was indeed a problem. The Martian was not too bright. Also, he was lazy. The capturing of this Terran changed things, he told himself. He would take the boy to the terminal. Then perhaps something would happen so he would not have to take the long walk back through the tunnel. Perhaps he would be honored for his capture and another would be sent to the hutch. This hope brightened him as he took Tommy roughly by the arm and hauled him toward the railhead. Tommy was not a difficult prisoner. They moved swiftly. But the boy was breathing heavily when he was pushed into one of the cars and the Martian took the controls. Tommy rested, awaiting his chance. He had by no means given up hope. It was just a matter of the Martian easing up on his arm. At least that would be the first step. Tommy was glad the Martian had been contemptuous and not tied him up. The car rolled smoothly along its tracks; faster than the one used to transport Rex and Jean because the Martian transporting Tommy had always liked speed. He liked it so well he opened the car to its greatest capacity and at one point had to release Tommy's arm in order to put both hands on the throttle. Tommy struck instantly without thought as to the outcome—only with hope. And his hopes were fulfilled. He hurled himself against the Martian with both fists extended. They hit hard brown hide just below the Martian's right shoulder and sent him off balance. The Martian snatched at Tommy while trying to regain his equilibrium and learned the folly of attempting two things at once. But too late. He teetered, howled dismally, and pitched in front of the racing car. It hit him with a dull thud, killing him instantly. But his dead bulk also wreaked a kind of vengeance on the car, lifting it from its tracks and sending it skidding along on its side. Tommy had been thrown clear and as he hit the wall of the tunnel he knew he was done for. Every bone in his body snapped. Every ounce of his flesh crackled