Earth to keep the atomic engines going. Right?'
I nodded over at our geiger counters.
'We volunteered to come to Mars,' Val said irrelevantly.
'Ah—two young heroes,' Ledman said acidly. 'How sad. I could almost feel sorry for you. Almost.'
'Just what is it you're after?' I said, stalling, stalling.
'Atomics cost me my legs,' he said. 'You remember the Sadlerville Blast?' he asked.
'Of course.' And I did, too. I'd never forget it. No one would. How could I forget that great accident—killing hundreds, injuring thousands more, sterilizing forty miles of Mississippi land—when the Sadlerville pile went up?
'I was there on business at the time,' Ledman said. 'I represented Ledman Atomics. I was there to sign a new contract for my company. You know who I am, now?'
I nodded.
'I was fairly well shielded when it happened. I never got the contract, but I got a good dose of radiation instead. Not enough to kill me,' he said. 'Just enough to necessitate the removal of—' he indicated the empty space at his thighs. 'So I got off lightly.' He gestured at the wheelchair blanket.
I still didn't understand. 'But why kill us Geigs?
'You're just in this by accident,' he said. 'You see, after the explosion and the amputation, my fellow- members on the board of Ledman Atomics decided that a semi-basket case like myself was a poor risk as Head of the Board, and they took my company away. All quite legal, I assure you. They left me almost a pauper!' Then he snapped the punchline at me.
'They renamed Ledman Atomics. Who did you say you worked for?'
I began, 'Uran—'
'Don't bother. A more inventive title than Ledman Atomics, but not quite as much heart, wouldn't you say?' He grinned. 'I saved for years; then I came to Mars, lost myself, built this Dome, and swore to get even. There's not a great deal of uranium on this planet, but enough to keep me in a style to which, unfortunately, I'm no longer accustomed.'
He consulted his wrist watch. 'Time for my injection.' He pulled out the tanglegun and sprayed us again, just to make doubly certain. 'That's another little souvenir of Sadlerville. I'm short on red blood corpuscles.'
He rolled over to a wall table and fumbled in a container among a pile of hypodermics. 'There are other injections, too. Adrenalin, insulin. Others. The Blast turned me into a walking pin-cushion. But I'll pay it all back,' he said. He plunged the needle into his arm.
My eyes widened. It was too nightmarish to be real. I wasn't seriously worried about his threat to wipe out the entire Geig Corps, since it was unlikely that one man in a wheelchair could pick us all off. No, it wasn't the threat that disturbed me, so much as the whole concept, so strange to me, that the human mind could be as warped and twisted as Ledman's.
I saw the horror on Val's face, and I knew she felt the same way I did.
'Do you really think you can succeed?' I taunted him. 'Really think you can kill every Earthman on Mars? Of all the insane, cockeyed—'
Val's quick, worried head-shake cut me off. But Ledman had felt my words, all right.
'Yes! I'll get even with every one of you for taking away my legs! If we hadn't meddled with the atom in the first place, I'd be as tall and powerful as you, today—instead of a useless cripple in a wheelchair.'
'You're sick, Gregory Ledman,' Val said quietly. 'You've conceived an impossible scheme of revenge and now you're taking it out on innocent people who've done nothing, nothing at all to you. That's not sane!'
His eyes blazed. 'Who are you to talk of sanity?'
Uneasily I caught Val's glance from a corner of my eye. Sweat was rolling down her smooth forehead faster than the auto-wiper could swab it away.
'Why don't you do something? What are you waiting for, Ron?'
'Easy, baby,' I said. I knew what our ace in the hole was. But I had to get Ledman within reach of me first.
'Enough,' he said. 'I'm going to turn you loose outside, right after—'
'
That did it. Ledman hadn't much humanity left in him, but there was a little. He lowered the blaster a bit and wheeled one-hand over to see what was wrong with Val. She continued to retch and moan most horribly. It almost convinced me. I saw Val's pale, frightened face turn to me.
He approached and peered down at her. He opened his mouth to say something, and at that moment I snapped my leg up hard, tearing the tangle-cord with a snicking rasp, and kicked his wheelchair over.
The blaster went off, burning a hole through the Dome roof. The automatic sealers glued-in instantly. Ledman went sprawling helplessly out into the middle of the floor, the wheelchair upended next to him, its wheels slowly revolving in the air. The blaster flew from his hands at the impact of landing and spun out near me. In one quick motion I rolled over and covered it with my body.
Ledman clawed his way to me with tremendous effort and tried wildly to pry the blaster out from under me, but without success. I twisted a bit, reached out with my free leg, and booted him across the floor. He fetched up against the wall of the Dome and lay there.
Val rolled over to me.
'Now if I could get free of this stuff,' I said, 'I could get him covered before he comes to. But how?'
'Teamwork,' Val said. She swivelled around on the floor until her head was near my boot. 'Push my oxymask off with your foot, if you can.'
I searched for the clamp and tried to flip it. No luck, with my heavy, clumsy boot. I tried again, and this time it snapped open. I got the tip of my boot in and pried upward. The oxymask came off, slowly, scraping a jagged red scratch up the side of Val's neck as it came.
'There,' she breathed. 'That's that.'
I looked uneasily at Ledman. He was groaning and beginning to stir.
Val rolled on the floor and her face lay near my right arm. I saw what she had in mind. She began to nibble the vile-tasting tangle-cord, running her teeth up and down it until it started to give. She continued unfailingly.
Finally one strand snapped. Then another. At last I had enough use of my hand to reach out and grasp the blaster. Then I pulled myself across the floor to Ledman, removed the tanglegun, and melted the remaining tangle- cord off.
My muscles were stiff and bunched, and rising made me wince. I turned and freed Val. Then I turned and faced Ledman.
'I suppose you'll kill me now,' he said.
'No. That's the difference between sane people and insane,' I told him. 'I'm not going to kill you at all. I'm going to see to it that you're sent back to Earth.'
'
'Not so loud,' I broke in. 'They'll help you on Earth. They'll take all the hatred and sickness out of you, and turn you into a useful member of society again.'
'I hate Earthmen,' he spat out. 'I hate all of them.'
'I know,' I said sarcastically. 'You're just all full of hate. You hated us so much that you couldn't bear to hang around on Earth for as much as a year after the Sadlerville Blast. You had to take right off for Mars without a moment's delay, didn't you? You hated Earth so much you
'Why are you telling all this to me?'
'Because if you'd stayed long enough, you'd have used some of your pension money to buy yourself a pair of prosthetic legs, and then you wouldn't need this wheelchair.'
Ledman scowled, and then his face went belligerent again. 'They told me I was paralyzed below the waist. That I'd never walk again, even with prosthetic legs, because I had no muscles to fit them to.'
'You left Earth too quickly,' Val said.
'It was the only way,' he protested. 'I had to get off—'
'She's right,' I told him. 'The atom can take away, but it can give as well. Soon after you left they developed