The Old Man paid no attention but crawled on through and into another ruddy-glowing tube. We followed its contortions to a place where it widened out to ten feet or more with a "ceiling" overhead almost tall enough to let us stand erect. But that was not what caught our eyes; the walls were no longer opaque.

On each side of us, beyond transparent membranes, were thousands on thousands of slugs, swimming, floating, writhing in some fluid which sustained them. Each tank had an inner diffuse light of its own and I could see back into the palpitating mass-and I wanted to scream.

I still had my gun out. The Old Man reached back and placed his hand over the bell of it. "Don't yield to temptation," he warned me. "You don't want to let that loose in here. Those are for us."

Mary looked at them with a face too calm. Thinking back, I doubt that she was fully conscious in the ordinary sense. I looked at her, glanced back at the walls of that ghoulish aquarium, and said urgently, "Let's get out of here if we can-then just bomb it out of existence."

"No," he said quietly, "there is more. Come." The tube narrowed in again, then enlarged and we were again in a somewhat smaller chamber like that of the slugs. Again there were transparent walls and again there were things floating beyond them.

I had to look twice before I could fully make out and believe what I saw.

Floating just beyond the wall, face down, was the body of a man-a human. Earth-born man-about forty to fifty years old. He was grizzled and almost bald. His arms were curved across his chest and his knees were drawn up, as if he were sleeping safe in bed-or in the womb.

I watched him, thinking terrible thoughts. He was not alone; there were more beyond him, male and female, young and old-but he was the only one I could see properly and he got my attention. I was sure that he was dead; it did not occur to me to think otherwise-then I saw his mouth working-and then I wished he were dead.

Mary was wandering around in that chamber as if she were drunk-no, not drunk but preoccupied and dazed. She went from one transparent wall to the other, peering intently into the crowded, half-seen depths. The Old Man looked only at her. "Well, Mary?" he said softly.

"I can't find them!" she said piteously in a voice like a little girl's. She ran back to the other side.

The Old Man grasped her arm and stopped her. "You're not looking for them in the right place," he said firmly. "Go back where they are. Remember?"

She stopped and her voice was a wail. "I can't remember!"

"You must remember . . . now. This is what you can do for them. You must return to where they are and look for them."

Her eyes closed and tears started leaking from them. She gasped and choked. I pushed myself between them and said, "Stop this! What are you doing to her?"

He grabbed me with his free hand and pushed me away. "No, son," he whispered fiercely. "Keep out of this-you must keep out."

"But-"

"No!" He let go of Mary and led me away to the entrance. "Stay there. And, as you love your wife, as you hate the titans, do not interfere. I shan't hurt her-that's a promise."

"What are you going to do?" But he had turned away. I stayed, unwilling to let it go on, afraid to tamper with what I did not understand.

Mary had sunk down to the floor and now squatted on it like a child, her face covered with her hands. The Old Man went back to her, knelt down and touched her arm. "Go back," I heard him say. "Go back to where it started."

I could barely hear her answer, "No . . . no."

"How old were you? You seemed to be about seven or eight when you were found. It was before that?"

"Yes-yes, it was before that." She sobbed and collapsed completely to the floor. "Mama! Mama!"

"What is your mama saying?" he asked gently.

"She doesn't say anything. She's looking at me so queerly. There's something on her back. I'm afraid, I'm afraid!"

I got up and hurried toward them, crouching to keep from hitting the low ceiling. Without taking his eyes off Mary the Old Man motioned me back. I stopped, hesitated. "Go back," he ordered. "Way back."

The words were directed at me and I obeyed them-but so did Mary. "There was a ship," she muttered, "a big shiny ship-" He said something to her; if she answered I could not hear it. I stayed back this time and made no attempt to interfere. I could see that he was doing her no physical hurt and, despite my vastly disturbed emotions, I realized that something important was going on, something big enough to absorb the Old Man's full attention in the very teeth of the enemy.

He continued to talk to her, soothingly but insistently. Mary quieted down, seemed to sink almost into a lethargy, but I could hear that she answered him. After a while she was talking in the monotonous logorrhea of emotional release. Only occasionally did the Old Man prompt her.

I heard something crawling along the passage behind me. I turned and drew my gun, with a wild feeling that we were trapped. I almost shot him before I realized that it was the ubiquitous young officer we had left outside. "Come on out!" he said urgently. He pushed on past me out into the chamber and repeated the demand to the Old Man.

The Old Man looked exasperated beyond endurance. "Shut up and don't bother me," he said.

"You've got to, sir," the youngster insisted. "The commander says that you must come out at once. We're falling back; the commander says he may have to use demolition at any moment. If we are still inside-blooie! That's it."

"Very well," the Old Man agreed in unhurried tones. "We're coming. You go out and tell your commander that he must hold off until we get out; I have vitally important information. Son, help me with Mary."

"Aye, aye, sir!" the youngster acknowledged. "But hurry!" He scrambled away. I picked up Mary and carried her to where the chamber narrowed into a tube; she seemed almost unconscious. I put her down.

"We'll have to drag her," the Old Man said. "She may not come out of this soon. Here-let me get her up on your back, you can crawl with her."

I paid no attention but shook her. "Mary," I shouted, "Mary! Can you hear me?"

Her eyes opened. "Yes, Sam?"

"Darling-we've got to get out of here, fast! Can you crawl?"

"Yes, Sam." She closed her eyes again. I shook her again. "Mary!"

"Yes, darling? What is it? I'm so tired."

"Listen, Mary-you've got to crawl out of here. If you don't the slugs will get us-do you understand?"

"All right, darling." Her eyes stayed open this time but were vacant. I got her headed up the tube and came along after her. Whenever she faltered or slowed I slapped at her. I lifted and dragged her through the chamber of the slugs and again through the control room, if that is what it was. When we came to the place where the tube was partly blocked by the dead elfin creature she stopped; I wormed my way past her and moved it, stuffing it into the branching tube. There was no doubt, this time, that its slug was dead; I gagged at the job. Again I had to slap her into cooperation.

After an endless nightmare of leaden-limbed striving we reached the outer door and the young officer was there to help us lift her out, him pulling and the Old Man and me lifting and pushing. I gave the Old Man a leg up, jumped out myself, and took her away from the youngster. It was quite dark.

We went back the long way past the crushed house, avoiding the jungle like brake, and thence down to the beach road. Our car was no longer there; it did not matter for we found ourselves hurried into a "mud turtle" tank-none too soon, for the fighting was almost on top of us. The tank commander buttoned up and the craft lumbered off the stepped-back seawall and into the water. Fifteen minutes later we were inside the Fulton.