 How did Gwayne subdue the alien leader?
Captain Gwayne cursed and rolled over, reaching for his boots. Earth had ordered him to detour here, after leaving his load of deep-sleep stored colonists on Official World 71, to check on any sign of Hennessy. One, at the front, was stuttering into life, and Gwayne dashed for it as the exit port slid back. Gwayne jolted forward against the windshield, just as he made out the form of the eight-foot leader. The two were loaded onto a jeep while men helped Barker and Gwayne stow the bound monster on another before heading back. "I want that thing to live—and you're detailed to save it and revive it. I want to know what happened to Hennessy and why that ship was buried against detection.
 He wrestled it with his hands.
 He ran over it with the Jeep.  He wrestled it with his hands.  The leader surrendered.  He used a spear to injure it.