"We're going to wait. I've a theory about some of this. We know blamed well that, except for the most miraculous luck, you couldn't have set the plane down on this field without it slipping off again. Well there's only one answer to that: the rubbery resilience of the surface. It must have given a little to hold the plane--and us when we walked on it. What does that mean? Simply that we were seen and the field made usable for us by some intelligence. That intelligence watches us now. It saved our lives for some reason or other. It didn't destroy us when we were afoot out there. It isn't destroying us now. It's swallowing us whole--and for some reason. Why? That we'll have to discover. But I think we can rest easy on one thing. We're not to be killed by this swallowing act, else we'd have been dead before now." "Have you any idea what this stuff is?" "Yes, but the idea is so wild and improbable that I'm reluctant to tell you what I guess until I know more. However, if it develops that we are to die in this swallowing act, then I'll give you a tip--and it will probably knock you off your pedestal. But the more I think of it the more certain I am that the whole things is at least a variation of my idea. And the brains behind it, if my guess proves even approximately correct, will be too great for us to win mastery except by some miraculous accident favoring us--and true miracles come but seldom in these days." "No? What do you call this?" Jeter shrugged. With many ports all around the cabin, all fitted with unbreakable glass, it was possible for the partners to see out in all directions. The tentacle fingers had now climbed up to a height sufficient to smother both windows. The fuselage was about half swallowed. "I can almost hear the stuff sigh inwardly with satisfaction as it takes us in," said Eyer. "I have the same feeling. There's a peculiar sound about it too; do you hear it?" They listened. The sound which came into the cabin was such a sound as might have been heard by a man inside a cylinder lying on the bottom of a still pond. A whisper that was less than a whisper--a _moving_ whisper. In it were life and death, and grim terror. * * * * * And then--remembering that contact with the propeller would shatter it, Tema cut the switch--the propeller stopped, the motor died, and utter silence, in the midst of an utter absence of vibration, possessed the comfortable little cabin. It was hard to believe. The cabin was a breath of home. It was a home. And it was being swallowed by some substance concerning which Eyer had no ideas at all and Jeter but a growing suspicion. The plane sank lower and lower. The surface of the field was now almost to the top of the cabin doors. Most of the windows had been erased, but it made no particular difference in the matter of light. Jeter had put out his hand to snap on the lights, but stayed it when he saw that light came through to them.