nothing happened. When we reached Alpha Centaurus, and set down at the trading field on the second planet, it was the same as the other trips we'd made, and the same kind of landfall. The Lud factor came out of his post after we'd waited for a while, and gave us our permit to disembark. There was a Jek ship at the other end of the field, loaded with the cargo we would get in exchange for our holdful of goods. We had the usual things; wine, music tapes, furs, and the like. The Jeks had been giving us light machinery lately—probably we'd get two or three more loads, and then they'd begin giving us something else. But I found that this trip wasn't quite the same. I found myself looking at the factor's post, and I realized for the first time that the Lud hadn't built it. It was a leftover from the old colonial human government. And the city on the horizon—men had built it; the touch of our architecture was on every building. I wondered why it had never occurred to me that this was so. It made the landfall different from all the others, somehow. It gave a new face to the entire planet. Mac and I and some of the other crewmen went down on the field to handle the unloading. Jeks on self-propelled cargo lifts jockeyed among us, scooping up the loads as we unhooked the slings, bringing cases of machinery from their own ship. They sat atop their vehicles, lean and aloof, dashing in, whirling, shooting across the field to their ship and back like wild horsemen on the plains of Earth, paying us no notice. We were almost through when Mac suddenly grabbed my arm. "Look!" The stoker was coming down on one of the cargo slings. He stood upright, his booted feet planted wide, one arm curled up over his head and around the hoist cable. He was in his dusty brown Marine uniform, the scarlet collar tabs bright as blood at his throat, his major's insignia glittering at his shoulders, the battle stripes on his sleeves. The Jeks stopped their lifts. They knew that uniform. They sat up in their saddles and watched him come down. When the sling touched the ground, he jumped off quietly and walked toward the nearest Jek. They all followed him with their eyes. "We've got to stop him," Mac said, and both of us started toward him. His hands were both in plain sight, one holding his duffelbag, which was swelled out with the bulk of his airsuit. He wasn't carrying a weapon of any kind. He was walking casually, taking his time.