Explore "The Green Girl" by Jack Williamson on Textopian. Read with annotations and highlights.
For some time I had felt that Sam was afraid of something, of a danger more personal than the freezing of the earth. He had said little about it, but from his hints I gathered that he thought the mysterious force he was struggling against might do something to sweep him and his machine out of the way. He spent hours alone in the little room, with the apparatus that registered new force in the ether, manipulating his switches and dials, with the phones on his ears, and his eyes fixed on the color screen, listening and watching intently -- for what?
There was no man on earth with enough knowledge of science to follow him. None could have understood his explanations, even if he had given them. So the world will never know.