If a man from the mid-1920's had picked up today's paper he would have mistaken it for a science fiction magazine. In the same way, if a man from the mid-1960's could be confronted with a national daily from thirty years hence he would shake his head and regard the whole thing as preposterous. Stop. Think. Wonder. Tomorrow's commonplace was today's miracle. Today's commonplace was yesterday's miracle. Most things change. Some change faster than others. Human nature changes most slowly of all. The sword has given way to the gun, but the hand that holds the gun is neither braver nor more cowardly than the hand that held the sword. The gun gives place to the heatray and the energy blaster, but the hand still belongs to a hero or a coward. The greatest drama of the world is human drama. People are still fundamentally people. Spacemen are people. They will still have our human problems a hundred years hence. This is a story of people in the future facing our basic problems in a more complex environment.

Henderson was a brilliant nuclear physicist until the night he staggered home a pathetic wreck of his former self, raving wildly about flying saucers and a strange being named Ravan. No scientific nation could afford to lose a genius of Henderson's capacity and Parnell Scott, an experimental psychiatrist, was given the job of restoring Henderson's sanity. Scott gradually infiltrated Henderson's apparent fantasy and found himself involved in research that produced frightening results.

According to ancient legends there had once lived a strange, tyrannical ruler named Ravan, who had possessed a vimana or 'flying car'. But Henderson knew nothing of the legends!

Parnell Scott worked desperately against time, sinister foreign agents intent on keeping Henderson insane, and something as old as human history yet as new as tomorrow and more dangerous than nuclear energy.

This mature, though-provoking novel is an attempt to fill the gulfs of Time and Space with possibilities.