At Haynes' order, six of his twenty henchmen picked up Geedeh and Pa and me. The whole bunch was an ugly looking lot, the scum of the space ports. Some of these men were commanded to stay on the surface of the planetoid, while we were carried to the elevator shed. In the cage we descended at dizzying speed to that vault at the center of 487 where the gravity machinery was housed in its crystal shell. At that depth, under the load of the column of air above, the atmospheric pressure was very high. One could not breathe comfortably in that stuffy medium.

"Courage!" Geedeh gasped to Pa Mavrocordatus and me, while his great eyes kept roving around, looking for some chance that wasn't there.

Haynes began to examine the machinery. He was smirking again. "Simple to do!" he said to his companions. "Set the robot control for gradually increasing power, so that we'll have time to get away. Break the manual controls, so that no readjustments can be made. You can cut our friends loose now, Zinder, so there won't be any ropes to show this was a put-up job. But keep your blasters on these men—all of you!"

This was the end, all right. I was sure of it. I'd die without even knowing what had happened to Irene. Irene, whom I knew now that I loved....

We'd been freed of our bonds when the surface phone rang. The lookout party, whom Haynes had left above, was calling. Our captor snapped on the switch of the speaker. A voice boomed in that busy cavern of metal giants, green light, and glinting crystal:

"Listen, Chief! There's a bunch of specks to the right of the sun. They're getting bigger fast. Must be a flock of space ships. Couldn't be any of yours. What'll we do?"

I saw Haynes' weak features go sallow. Briefly my spirits rose. I couldn't imagine whom those ships could belong to. But they must be rescuers of some kind. They were coming to stop Norman Haynes' madness.

But Haynes was clever, as he quickly proved. "Friends of Wallace here, I suppose. Maybe even Space Patrol boats," he said over his phone to the lookout party. "You'll all have to take a discomfort for a while. We'll use gravity on them, too! They'll never land successfully."

Pa Mavrocordatus looked at me and Geedeh. "What's he mean—use gravity?"

Geedeh was a bit quicker than I in giving the obvious answer. "Just as with us," he said. "Increase the output of the gravity generator here to a certain degree. From space, the increase will be practically unnoticeable. The rockets will try to land—but without taking into consideration the multiplied attractive force, they will crash!"