"I have allowed for that. The gas would still be in his system. No—nine or ten days is the limit." He raised his voice again to reach the Eurasian. "Can you complete the work within nine days, Dr. Ku?"

Ku Sui considered it. At last he said:

"That is a lot to ask, Master Leithgow. But—it might be possible. However, it would mean prodigies of sustained, concentrated labor; work and skill never-ceasing. We'll have to work in shifts, naturally."

So it was arranged. All the assistants, both Ku Sui's and Leithgow's, were portioned off into shifts of four hours' sleep and eight hours' work: Carse, Ban Wilson and Friday, too, for now every one of them was needed.

Nine days for the work of a month—and work as delicate and vital as could possibly be! Small wonder that in the minds of all of them, the Hawk and the old scientist, and Ban and the Negro, that period, when remembered later, seemed no more than a confused, unreal, hazy dream; rather, a nightmare connected imperishably with the odors of an operating room, antiseptics, etheloid, and the glint of small, sharp instruments.

It was a titanic task, an ordeal that stretched to the limit the powers of the men working in that confined space. Normal life for them ceased; the operating room became a new universe. Swiftly they lost consciousness of time, even with the routine of the changing shifts and the food which was brought in at regular hours. Antiseptics, etheloid, the never-ceasing flow of the instruments, the five bodies lying still and deathlike on the tables, the hard white glare of the light beating down on them—all this and nothing more—all sealed away underground from the life of the forgotten world above. On and on and on....


t is impossible even to conjecture how the mind of Ku Sui saw the colossal work that he was doing to aid his most bitter enemies. Even when he was normal there are only moments when, through some recorded speech or action of his, we can peer past the man's personality into his brain; how great a sealed mystery must his thoughts remain to us when held in that abnormal state by Eliot Leithgow's V-27! Envision it: this arch-foe of Hawk Carse and Leithgow helping their designs, lending all his intellect, his great skill, to their purposes, aiding them in everything! Certainly, afterwards, the memory of what he had been forced to do must have occasioned Dr. Ku many bitter moments. Regularly, every four waking hours, he was led to the metal chair and gassed afresh with the V-27; and his expression remained pleasant; his eyes were always friendly. But the artificial state in which he was kept showed soon on his face. It lost its clearness and became a jaundiced yellow in color: and also it grew peaked and drawn.

But the other faces around him were peaked and drawn, too. The terrific strain told in definite terms on all, no matter what stimulants they took to keep going. Many a man would have been driven to insanity by their sustained, terrible concentration, and the knowledge that five lives hung on every action, however minute....