We read of the days when the powers of radium were yet unknown. It is told us that burns were produced by incautiously carrying a tube of radium salts in the pocket. And here in this story we are told of a different power, opalescence, due to another element. It can destroy mountains, excavate cavities of immeasurable depths and kill human beings and animals in multitude. The story opens with a poor little boy experimenting with a burning glass. Then he becomes the hero of the story—he studies and eventually finds himself able to destroy the earth. He exceeds Archimedes in his power. And he suddenly finds that he has unlocked a power that threatens this very destruction. And the story depicts his horror at the Frankenstein which he had unloosed, and tells of his wild efforts to save humanity, and of the loss of the cosmic discoveries of the little newsboy grown up to be a great scientist.