Originally published in the fourth issue of Captain Future Magazine in 1940 with the better title of The Triumph of Captain Future. Captain Future was a pulp hero, sort of a far-future Doc Savage, who travelled about the solar system with his associates in The Comet, his super space ship, fighting crime and evil in order to make the spaceways safe for the good guys. It all sounds dreadfully silly on the surface, but they were full of good-hearted, enthusiastic fun and adventure. Kind of like Luke Skywalker without all of the angst. In this story the fountain of youth has been discovered and turns out to be much more of a curse than a blessing to those who become addicted. Good old-fashioned space opera.