I sloped upstairs like a scared rabbit. Up to the third again where I moved down the corridor and slipped into the much-too-thin niche made by a door. Stolidly the guard came up the stairs, crossed in front of the elevator with his back to me, turned the far corner and went on up to the fourth.

As his feet started up the stairs, I was behind him; by the time he reached the top, I was half way up.

Phelps said, "Now, from this moment on, Waldron, you'll follow every order to the absolute letter. And when I ring, don't make the error of bringing the elevator. Send it. It'll come up and stop without a pilot."

"Yes sir. I'm sorry sir. But you understand, sir, there isn't really much to guard, sir."

"Then guard nothing. But guard it well, because a man in your position is gauged in success by the amount of boredom he creates for himself."

The guard started down and I darted up to poke my head out to see where Phelps was going. As I neared the floor level, I had a shock like someone hurling twenty gallons of ice water in my face. The top floor was the end of the dead area, and I—

—pulled my head down into the murk like a diver taking a plunge.

So I stood there making like a guppy with my head, sounding out the boundary of that deadness, ducking down as soon as the mental murk gave me a faint perception of the wall and ceiling above me. Then I'd move aside and sound it again. Eventually I found a little billowing furrow that rose above the floor level and I crawled out along the floor, still sounding and moving cautiously with my body hidden in the deadness that rose and fell like a cloud of murky mental smoke to my sense of perception.

I would have looked silly to any witness; wallowing along the floor like a porpoise acting furtive in the bright lights.

But then I couldn't go any farther; the deadness sank below the floor level and left me looking along a bare floor that was also bare to my sense of perception.