“Imagine!” Trowson whispered to me. He was pacing the floor as if he full intended to walk all the way to Betelgeuse. “We’d just be children on a quintupled life scale, Dick. All my achievement and education, all yours, would be just the beginning! A man could learn five professions in such a life—and think what he could accomplish in one!”

I nodded, a little numb. I was thinking of the books I could read, the books I might write, if the bulk of my life stretched ahead of me and the advertising profession as just a passing phase at the beginning of it. Then again, somehow I’d never married, never had had a family. Not enough free time, I had felt. And now, at forty, I was too set in my ways. But a man can unset a lot in a century …

In six days the aliens came out. With a statement of price.

They believed they could persuade their people to manufacture a supply of revitalizers for us if—An IF writ very large indeed.

Their planet was woefully short of radioactive minerals, they explained apologetically. Barren worlds containing radium, uranium, and thorium had been discovered and claimed by other races, but the folk of Betelgeuse IX were forbidden by their ethics to wage aggressive war for territorial purposes. We had plenty of radioactive ore, which we used chiefly for war and biological research. The former was patently undesirable and the latter would be rendered largely unnecessary by the revitalizers.

So, in exchange, they wanted our radioactive elements. All of them, they stated humbly.

All right, we were a little surprised, even stunned. But the protests never started to materialize. There was an overwhelming chorus of “sold!” from every quadrant of the globe. A couple of generals here, a few militaristic statesmen there managed to raise direly pointing forefingers before they were whisked out of position. A nuclear physicist or two howled about the future of subatomic research, but the peoples of the earth howled louder.

“Research? How much research can you do in a lifetime of three hundred years?”

Overnight, the United Nations became the central office of a planet-wide mining concession. National boundaries were superseded by pitchblende deposits and swords were beaten into pickaxes. Practically anyone with a good, unable arm enlisted in the shovel brigades for two or more months out of the year. Comaraderie flew on the winds of the world.

Andy and Dandy politely offered to help. They marked out on detail contour maps the spots to be mined, and that included areas never suspected of radioactivity. They supplied us with fantastic but clear line drawings of devices for extracting the stuff from the ores in which it assayed poorly, and taught us the exact use of these devices, if not their basic principle.