he Earthmen moved quickly and quietly into Joan's room. Thin, crinkly draperies of heavy silk impregnated with lead in colloidal solution, covered all the walls, the door itself. But Hilary shot no more than a cursory glance around; he had left the slide slightly ajar; he was listening intently. The gun was in his hand. There were only two bullets in the chambers—all that were left of the thousands of rounds the expedition had started out with. He must not waste them.

The thick rough voice of a Mercutian floated up from below.

"Three Earth slaves came in here. Where did they go?"

"They did," Joan admitted readily. "They frightened me out of my wits. I screamed and they ran through the house and out the back way."

The Mercutian was suspicious.

"Hmm. Funny there's no sign of a struggle here. Nothing is upset."

"They ran out the back way," the girl repeated tonelessly.

"We'll see; but if you are lying...." He said no more, but the pause was significant in its implications.

"I would not lie to the Magnificents."

"Not if you are wise." He seemed to be the leader. He evidently turned to his companion, for there issued a flood of throaty consonants to which the other grunted once. Then the listeners heard his heavy stamping as he walked through the house to the rear. A door whirred; he had gone out.

he remaining Mercutian said suddenly: "He won't find them."

"Why not?" Joan asked, a bit tremulously.

The Mercutian laughed harshly. "Because you lied. You've hid them in the house."

Hilary heard Joan's sudden sharp intake of breath.

"No, no, Magnificent," she cried.

The Mercutian laughed again—a hard cruel laugh. There was no mirth in it.

"All Earthwomen are liars. I know where you hid them. In your bed chamber. The trick is too old already. We may not be able to see through the lead curtains, but we can break down the door. I warned Artok not to permit the use of the lead curtains, but he has a soft streak. He listened to the women's pleadings for privacy. Privacy, pah! A cloak for conspiracies, that's all it comes to. When Gurda returns, we search upstairs and drag out your rats from their hole."

He laughed smugly, pleased with his own cleverness.

"It is not so." Strange how calm Joan sounded. "They are not in the house. Only my dying mother is here. She is bedded upstairs. The doctor ordered absolute quiet. The slightest noise would be fatal."

The Mercutian sneered. "We'll take a look at that dying mother of yours right now."

"You mustn't," the girl panted. "She will die, I tell you."

"And what does it matter to me?"

There was the sound of a struggle, a sharp cry, followed by a dull thud.

ilary was out through the door like a flash, down the corridor to the head of the stairs with automatic extended. The monster Mercutian was coming heavily up the treads. They saw each other simultaneously.

The Mercutian's pink eyes turned a vicious red; the tube dangling in his hand jerked sharply up. Hilary squeezed the trigger. The gun barked. The Mercutian spun half around with the force of the tearing bullet. The deadly beam from his weapon slithered over the wall, searing a great molten gash in the crystal. He was badly hurt, but he did not fall. Howling with pain and rage, he slewed himself around again, pointed his sun weapon unsteadily upward.

Hilary let him have the other slug. The big body jerked, and fell backward with a crash to the bottom of the stairs, there to lie oddly contorted and still.

There was a thundering rush from the rear of the lower floor, a hoarse throaty cry. Hilary tore down the steps three at a time, Grim and Wat slithering behind him.

The other Mercutian was bending over Joan's semiconscious form, sweeping her into the crook of a huge arm. He shot a startled glance at the down-pouring Earthmen, swerved the girl around, and aimed his tube.

Hilary pulled the trigger as he swerved. There was a sharp click, but no explosion. Hilary cursed and threw himself down. He had forgotten that there were no more bullets. The speeding flash scorched overhead.

Grim and Wat crouched low. Wat's tube, the one he had wrested from the dead guard on the conveyor, was being slowly raised. The Mercutian saw it, shifted the inanimate girl in front of himself, and backed stealthily toward the splintered door.

"Don't shoot," Hilary cried sharply. "You'll kill Joan."

Wat lowered the tube disgustedly. Hilary groaned aloud. If only he had had one more bullet. There was enough of the gigantic body exposed to offer an excellent target to a steel slug without harming Joan, but the sun weapon sent out its beam in a flat spray.

The Mercutian sensed their dilemma as they crouched on the stairs. He laughed unpleasantly as he backed through the doorway, Joan's limp body held straight in front of him.

"Good-by, Earth slaves," he taunted. "I take your pretty Earth maiden with me. In five minutes I return, with others. You cannot escape. Good-by."

He jumped clumsily through the door. The crouching Earthmen heard a click. It had closed behind him.

ilary and his companions cleared the stairs in almost a single bound. He had snatched the sun-tube out of Wat's hand. Through the splintered slide he saw the Mercutian climbing into his flier, but a great crystal column of the portico intervened. Nevertheless, while Wat fumbled for the button that released the slide, he took a chance. Every split second was precious now. He aimed the weapon, pressed the spring. A white dazzling ray darted fanwise from the orifice. It touched the column, fused it into molten, running glass. But the Mercutian was already in his seat, Joan limp beside him. He was fumbling at the controls.

The door slid open at last. Hilary shot through like a bullet from a rifle. The flier had already taken off on a long slanting rise. A three-fingered hand waved mockingly down at him. Hilary raised his weapon, then lowered it with a groan. The flier was well within range yet, but if he aimed the terrible beam at it, there would be a crash of fused twisted material, and—Joan was in it. What a dilemma! If he didn't shoot, she would be borne away—he dared not think to what horrible fate.

Grim's hand rested lightly on his shoulder as he watched the flier become a faint black speck in the direction of Great New York.

"She was your sweetheart." His gruff voice was oddly gentle.

Hilary brushed a weary hand over his forehead. The Earth, the universe itself, were suddenly dead, meaningless gobs of matter.

"Yes," he said tonelessly. "Five years ago she promised to wait for my return. She kept her word. I found her again—only to lose her."

Grim said quietly: "I too once loved a girl. I joined the last rebellion under Amos Peabody. The Mercutians threatened to seize the wives, sisters, sweethearts of the revolters if they persisted. Many of the men surrendered. I was one of those who refused. When the revolt was over, smothered in flame from their giant sun-tubes, I found that they had made good their threats. My girl was gone, vanished. Two Mercutians had taken her away. She was never found again."

He paused in brooding silence. "They are up to their old tricks again." His eyes were steely blue now. Hilary pressed his hand in silence. They were welded together by a common loss.

Wat Tyler broke in upon them. "If you fellows want to hang around here, I'll be on my way. That Mercutian hyena will be back here with a dozen others just like him in less than no time."

ilary snapped out of his sorrow. He could not help Joan by having himself captured or killed, nor was it fair to Grim and Wat. They had placed themselves unquestioningly under his leadership. Something else too was growing into burning life in his mind. This was his Earth, his and Grim's and Wat's, and of millions of other normal human beings. The Mercutians were interlopers, brutal conquerors. He would devote his now otherwise meaningless life to driving them off the planet, wiping them out of the solar system. A tall order, yes, but not for nothing had he fought almost single-handed against those other monstrosities on other worlds: Martians, Ganymedans, Saturnians. The Mercutians were no stronger than they. Besides, there was Joan.

"Men," he said crisply, once more the clear-headed commander of his space expedition, "I intend to fight these Mercutian invaders until Earth is free once more, or—I am dead. I have no illusions about the magnitude of the job, of its practical hopelessness. But that does not mean that you two have to throw away your lives also. I am a marked man, without any identification tag. You on the other hand, can get away from here, mingle indistinguishably with the hordes of people in Great New York. You would be safe. Our ways part here, if you desire it so." He added hastily, "I would be the last to blame you."

Grim Morgan and Wat Tyler looked at each other, a great giant of a man and an undersized bantam. Yet some electric spark of sympathy seemed to dart between them, these so dissimilar beings.

Wat elected to be the spokesman. His voice rose shrilly, as it always did when he was laboring under stress of excitement or emotion.

"You won't blame us," he almost squeaked. "Who asked you? Damn it, haven't we consciences of our own? Are we quitters, yellow-bellied Mercutians to quit a pal? Are we, Grim Morgan? Speak, you big ox."

He wheeled abruptly and shook a small fist high in the air. It barely reached under Grim's nose. The big man looked down at the little gamecock unsmilingly.

"No, Wat Tyler, we are not," he said gravely.

Wat turned to Hilary triumphantly.

"There, you see," he crowed, "we stick together. We'll lick those Mercutian monsters; we'll sweep them into the ocean, into space. And what's more, we'll rescue your girl too." He stopped to catch his breath. Grim was nodding slowly. He had not the little man's exuberance. His girl could not be rescued any more, but he could remember.

Hilary's frozen heart warmed into life again. With loyal comrades such as these, even the impossible might be accomplished. Very quietly, without heroics, the three men shook hands. Nothing more, yet they knew that they were bound indissolubly together, as long as there was a gasp of breath in any of them.

ilary's brain functioned with racing smoothness. In minutes the Mercutians would be back.

"We must find a secure hiding place at once," he said. "Know of any?"

Grim shook his head negatively. "There is none," he spoke slowly. "Their search beams penetrate everything."

"Except lead," Hilary interposed.

"Except lead," he conceded.

"Very well then. We shall have to find a place we can line with lead. In the meantime. I have my space flier up in the Ramapos. If it hasn't been discovered yet, it will be essential to our task. We'll have to get there quickly."

"How?" Wat asked,

"By the conveyors, of course."

"No good," the little man declared. "Mercutian guards will be patrolling them. You have no identification tag. You would be caught."

Hilary considered that. "Suppose you two go on along," he suggested. "Find it and wait for me. I'll manage somehow."

"No," they answered unanimously; "we go together or not at all."

Hilary did not try to argue. He would have replied himself in exactly the same terms. He looked longingly at the abandoned flier of the gray-faced Mercutian, lying cold and still within the house.

"If only we could operate the ship," he said.

Then, characteristically, he dismissed the vain longing and bent to the business in hand. "That means we'll have to make it on foot, and keep under cover all the way. Come on."

As the three men moved rapidly over the great lawn toward the nearest covert, a little wood a quarter of a mile away, the horizon that was Great New York showed silhouetted against the westering sun numerous little black dots. The Mercutians were coming.