Shriek after shriek pierced the hot air, such howls of utter fear and agony, as I hope never to hear again. The little figure, held high in the huge paws, writhed and tossed, to no avail. The sergeant reached the nearest tripod. His brawny arms flexed; straightened. The German swept up and over the head of the operator, and dropped in front of the machine. Then--he vanished. Nothing, absolutely nothing, was there between projector and rapidly retreating wall! A horrible retching tore my stomach; I swayed dizzily. The utter brutality, the finality of the thing! "And any more of you carrion that I catch slacking will get the same thing," the Russian said. "You, Renaud, I've got my eye on you. Watch out!" The sergeant's voice rasped through the mist about me. I shoved my shoulder under one end of an eight by eight and plunged into the back breaking labor. But one thought hammered at my reeling brain: "The _New York_! That's what happened to her!" * * * * * The long hours of toil at last ended. We were again in the entrance cavern, waiting for the elevator platform. It was unaccountably delayed: the last batch had gone up fifteen minutes before. The men about me chafed and swore. They were impatient for mess and bed. Bit by bit I had reconstructed all the elements of this unprecedented operation. The ray, the blasting ray that whiffed into non-existence all that it touched, was the keynote. The great plain had been cleared by the ray. The dim shapes floating high in that far-circling ellipse were pouring down the dreadful vibrations, thus holding back the sea in a marvelous green wall. I remembered the sea-monster that had dashed at me and vanished. That proved it. The dome of cloud was camouflage, or the product of the processes of destruction going on underneath: it didn't matter. What mattered was that it was interlaced by a network of ray beams. It was an impenetrable wall, a perfect defense. Boxed in on all sides by such a barrier, how was I to get out word of the menace? How was it to be combatted even if our forces knew of the danger? A hundred plans flooded my wearied brain, to be rejected one by one. A mocking, ribald cheer arose from the men around me. The platform was ascending. Why the long delay? A premonition of disaster chilled me. I shrugged it aside. We were at the top. A long line of soldiers curved about the mouth of the pit. The next shift waiting to go down? No--they made no move to approach. And each one was holding his ray-tube at the ready. This was the guard. At a table nearby a knot of officers was gathered. Papers of some sort were piled high on it. Again the icy finger of dread touched me. One of the officers moved aside, revealing the profile of his companion. The Ferret. Then I knew I was done for! My eyes darted here and there, seeking escape. No hope--the heavily armed guard was all around; the platform blocked the shaft mouth. A dash would be self-betrayal--suicide.