"Didn't kill them? Is that what you mean!" This was Lois Harmon again. "We didn't kill you, did we—when we certainly should have." She pointed about the room. "There's the vice-president of Uranium, Inc. He's been an engineer with us ever since he 'disappeared'. There's the crew and passengers of that space liner that lost its cargo last night." She shook her head furiously. "Our men have killed only as the last possible resort. That rule has been as important as our secret."

"Hush! Hush!" This was Dr. Harmon, holding up his hands, finally making himself heard. His eyes were grim behind his spectacles. "We haven't time for this now! This man has wrecked our remote control up here but we can still operate from the projector itself." He brushed his shaggy white hair from his eyes. "We must hurry before the police get here."

"But, my long-departed friend, the police aren't coming...."

Every eye turned from Steel to the door leading in from the passage. Steel craned to stare over the shoulders of the men who held him.

That great shadow in the doorway was the bulk of Hampton Stahl.

"I thought I had finished with your interference for good, Dr. Harmon, when I arranged that little laboratory explosion fifteen years ago," Stahl said. "I see now, however, that I'll have to destroy you and your work all over again."

Swiftly, when the shock of his appearance died, the men around Steel surged toward Stahl in one mass. And, just as swiftly, when they came at him, Stahl stepped aside, into the room, and twenty of his guards pushed through the door.

They carried volt rifles. Stahl waved his fat hand.

The guards fired straight into the unarmed group coming at them, mowing them down like insects. When the rifles lowered again, a full hundred charred forms writhed on the floor, then quickly lay still. Mike, Harlan Webb, the rest....

"After they've shown us around," Stahl said when the volt rifle reverberations died, "you can do away with all the rest of them." Then his thick lips twisted into a smile. "Including Mr. Steel there. It will relieve me of an embarrassing contract."