The hour that followed was longer than any full day I have ever lived through. Had I not confirmed the passage of time by looking at my watch, I would have sworn that at least twenty hours had passed.

Every half-minute I gazed at that weaving pattern of cup-shaped suckers only five feet away, trying to see if they were relaxing in their pressure. I attempted to persuade myself that they were. But I knew I was only imagining it. Actually they were pressed as flat as ever, and the sphere still quivered at regular intervals as the heavy body squeezed in on itself. There was no sign that its blind, mindless patience was becoming exhausted.

There was little conversation during that interminable hour.

Stanley grinned wryly once and commented on the creature's disappointment if it actually succeeded in getting at us.

"We'd be scattered all over the surrounding half mile by the pressure of the water," he said. "There'd be nothing left for our pet to feed on but five-foot chunks of broken glass. Not a very satisfying meal."

"We might try to reason with the thing—point out how foolish it is to waste its time on us," I suggested, trying to appear as nonchalant as he was.

The Professor said nothing. He was coolly writing in his notebook, describing minutely the appearance of our abysmal captor.

Finally I chanced to look down through a section of wall not covered by our stubborn enemy. I wiped the moisture from the glass before the searchlight so that I could see more clearly.