I lost track of direction almost at once. The trail zigzagged a couple of times, and then I sensed that we were in a covered passage. After a few more steps and a turn, a light appeared ahead, to show we were walking in a concrete lined tunnel. Our captors had split themselves into two groups, a half dozen ahead and an equal number behind. Soon there appeared a metal door in one wall, which proved to be the entrance to an elevator. We all squeezed in, and were taken down a distance which surely must have brought us near to the crater floor itself. The door then opened, and again we were escorted along a concrete passage. There were many turns. Our captors paused before a narrow door with a tiny barred window. This was unlocked, we were directed to enter, and the door clanked shut behind us. For the first few minutes no one had anything to say. We examined the interior of our cell, but found nothing more remarkable than concrete, a small ventilator hole near the ceiling, and a wooden bench along the wall opposite the door. Martin found his voice first. "A human being," he said slowly, "as big as the Woolworth Building!" Chamberlin, apparently still involved in his last abortive try at reason said, "But it's impossible. The laws of mechanics--why the biggest dinosaurs were only eighty feet long, and they had to be supported by water. It's a mechanical device, I tell you." "It could have been an illusion," I ventured. "Perhaps an image projected on a fog bank, or something similar--" Neither Walt nor I were very convincing--not with the memory of that face fresh in our minds. We all fell silent again. Several minutes passed, when abruptly we became conscious of a movement of the floor, slight but repeated with regularity. A shake, a pause of six or eight seconds, then another shake. Baker stood on the bench and put his ear to the ventilator. He heard nothing. The movement came again. Shake, pause, shake, pause, like some distant and monstrous machine. I was reminded of the small earthquakes felt in the vicinity of a heavy drop hammer. Shake, pause, shake, pause, and then a heavier jolt accompanied by a distinct thud. After that, quiet. "Obviously," Baker said, "they knew all about us." He was evidently thinking out loud. "Probably picked us up on the beach, and then just let us go on, clearing out the guards ahead, and keeping near enough to see that we didn't use the radio. Why? Maybe to find out how much we knew about the place already. I daresay they know one thing now: we never expected to find--what we did. Which brings us to our Buddha. The big question is, is it mechanical or--alive?" He paused. "I don't know--none of us can know yet--but, I'm inclined to believe the latter. Cady, what's your opinion?" I had forgotten for the moment that I was a zoologist. To tell the truth, the whole thing had been a little outside of the type of specimen I was familiar with.