Praying that I had strength enough left for this, I waited until it was nearly upon me, its lobster claws out-thrust, its six heavy feet pounding. Then I jumped, to one side, back again. I bounded high to the knee joint of the second limb on the left, as the Centaurian skidded to a halt. A second scrambling leap and I was on its back. Half on my feet, half on my hands, I scampered forward toward its head, even as several tentacles made their way gropingly toward me. No, I wasn't looking for a soft spot for my now dull sword. I knew there wouldn't be any. The tentacles were reaching, almost touching me, but I ignored them. I found the tiny door right behind its massive head. I was right! I found the lock and sprung it. The door swung open and inside the tiny, leaded shielded compartment the little creature occupying it looked up at me fearfully. I grasped it by the scruff of the neck and hoisted it out of its seat. The "Centaurian Gladiator" had stopped completely now. I dropped to the ground and tossed the thing before me. It was about the size of, and looked considerably like a small Terran pig. It was pink, fat, and, as Suzi said later, cute. Right now I didn't appreciate its cuteness. "Please," it squealed, "don't touch me. I can't bear being hurt!" I kicked it where its hams would have been had it really been a pig. It squealed again and started out, hampered in its speed by its fat, running across the arena with me after it, giving it _kert_ with the toe of my boot. It dashed for the helicopter and I gave it one last kick as it scampered for the craft's door so that it flew the last four feet. In the background I could hear the crowd roaring like thunder. In seconds, the helicopter had taken off and returned to the spaceship above. It was swallowed up and the Centaurian ship blasted off and away. Evidently, it wasn't waiting to see what the Solar System fleet would do when the farce was made known. I turned, and for a moment stared at the robot the Centaurian had occupied. Then my injuries and fatigue caught up with me. The fog rolled in and I slumped to the arena sands. * * * * * I explained later in the hospital room to the diplomats, the I.V.S. reporters, and the others. And I made the explanation as short as possible. In the first place, how could a thing that big and awkward have handled the helicopter so gracefully? How could _any_ organic creature survive the explosion of an atomic grenade? How could it breath fire? How could it stand a burning torch being thrust into its eyes? But it was the quotation that had brought it all home to me. I suddenly realized I was being fooled--and another of Suzi's quotations came to mind. _This is a horse of another color._ Then it clicked in its entirety. _The Trojan Horse_, I had thought, something is inside. It's a robot, a mechanical fighting machine, like the tanks of old.