times as deadly."

"How?" The Tellurian, although shocked, was dubious.

"I have reasoned it out that thought, in any organic being, is and must be connected with one definite organic compound—this one," the Velantian explained didactically, the while there appeared within the technician's mind the space formula of an incredibly complex molecule; a formula which seemed to fill not only his mind, but the entire room as well. "You will note that it is a large molecule, and one of high molecular weight. Thus it is comparatively unstable. A vibration at the resonant frequency of any one of its component groups would break it down, and thought would therefore cease."

It took perhaps a minute for the full import of the ghastly thing to sink into Thorndyke's mind. Then, every fiber of him flinching from the idea, he began to protest.

"But he doesn't need it, Worsel. He's got a mind already that can—"

"It takes much mental force to kill," Worsel broke in, equably. "By that method one can slay only a few at a time, and it is exhausting work. My proposed method would require only a minute fraction of a watt of power and scarcely any mental force at all."

"And it would kill—it would have to. That reaction could not be made reversible."

"Certainly," Worsel concurred. "I never could understand why you soft-headed, soft-hearted, soft-bodied human beings are so reluctant to kill your enemies. What good does it do merely to stun them?"

"QX—skip it." Thorndyke knew that it was hopeless to attempt to convince the utterly unhuman Worsel of the fundamental rightness of human ethics. "But nothing has ever been designed small enough to project such a wave."

"I realize that. Its design and construction will challenge your inventive ability. Its smallness is its great advantage. He could wear it in a ring, in the bracelet of his Lens; or, since it will be actuated, controlled, and directed by thought, even imbedded surgically beneath his skin."

"How about backfires?" Thorndyke actually shuddered. "Projection—shielding—"

"Details—mere details," Worsel assured him, with an airy flip of his scimitared tail.

"That's nothing to be running around loose," the man argued. "Nobody could tell what killed them, could they?"

 Prev. P 14/232 next