All the habitable worlds of the solar system were occupied. Three planets and eight satellites and eleven million million people swarmed in one of the most exciting ages ever known, yet minds still yearned for other times, as always. The solar system seethed with activity... fighting, feeding, and breeding, learning the new technologies that spewed forth almost before the old had been mastered, girding itself for the first exploration of the far stars in deep space; but, "Where are the new frontiers?" the Romantics cried, unaware that the frontier of the mind had opened in a laboratory on Callisto at the turn of the twenty-fourth century. A researcher named Jaunte set fire to his bench and himself (accidentally) and let out a yell for help with particular reference to a fire extinguisher. Who so surprised as Jaunte and his colleagues when he found himself standing alongside said extinguisher, seventy feet removed from his lab bench.