Just from following the bartender's gestures and facial expressions, I began to gather some of what was going on. I didn't know why, but they seemed to be dickering over possession of the weapon. And unless I misjudged the man's now-and-then pointing in the direction of where that stone cellar lay, I, too, was on the auction block.

The way I figured it, this sugarfoot wanted me, and it wanted the collapser. The bartender seemed willing enough to surrender me, but was nixing a deal on the weapon.

The drawn blinds and the men's lowered voices indicated that it must be nightfall. I'd started out into Marsport at midday. The rotation of the planet is only fractionally different from Earth's, so that meant that at least six hours had gone by since my capture. But a bar closing down at sunset, just when its business would begin picking up, would look pretty suspicious, so I could figure on probably another six hours, putting the time at somewhere past midnight.

I wished I could leave with the collapser, but I had my doubts that I could cross the floor of that room to snatch it from the table without being grabbed by someone. I shook my head and withdrew back into the corridor to think. No point in risking my life to get that weapon back, when I could simply slip out some other way and alert IS. A team of agents could reduce the bar to a sparkling crater in seconds, along with the men, sugarfoot and collapser.

It wouldn't be quite as glorious as acting the hero by myself, but it'd be considerably safer. I got back to my feet and started inspecting the rest of the corridor, seeking a less populated exit than the one onto Von Braun street.

Back the way I'd come, there was only the door to that cellar. I doubled back toward the other door by the bar itself, ducked down low, and scuttled past it on my hands and knees. No outcry came from the room, just the vociferous clacking noises, and an occasional mutter from one of the surrounding men. I figured I'd made it okay. The corridor bent, just past that doorway, and ended in a window. It was open. I stuck my head out and looked around.

Something was glowing just beneath me, something that reflected almost intolerable heat against my face when I looked down at it.

A river of liquified iron, ten feet wide, ran along a bed carved into the rocky soil. It was a good five feet between the bottom of the window and the sullen smolder of that hellish stream, but my face and throat felt already parboiled. Before ducking back into the relatively cooler temperature inside the corridor, I shot a glance toward the source of this impassable moat, and understood why it was there.

About two miles along this radiant river, I saw the towering metallic hulk of the converters, their shimmering molecule-blasting rays leaping from a multi-noded sender plate to a cup-shaped receiver. And, silhouetted against the black velvet night sky, above and between these deadly twins, was a monster escalator, carrying ton after ton of rich red Martian sand to a point in space directly above the flashing beam, and spilling it downward through the raw energy below.

Where the sand—pure ferrous oxide—struck the beam, I could not look without daring blindness, so violent were those disruptive reactions. But just above it, a silvery cloud arose and dissipated itself; the freed oxygen, enriching the atmosphere in this gigantic crater that was Marsport. And below it, a cataract of burning metal sprayed downward into an enormous vat, the sides of which were spouting a continual flow of this dangerous liquid into troughs which spread out in a fanlike pattern that must have encompassed the entire city.