Then something queer happened. Themis--disappeared! Yeah, that's right. It got lost! Can you imagine "losing" a cosmic body about 300 miles in diameter? Well, that's exactly what the astronomers of the Bloody Twentieth Century did. According to their record books, they hunted for it time and time again, but never relocated it. Finally they decided astronomer Pickering must have been sopping up too much _spiritus frumenti_ the night he discovered the satellite, and they expunged its name from the records. Which was, of course, a terrific boner ... because it was there all the time! It was rediscovered in 1983 by the staff observers of the Goddard Memorial Telescope located in Copernicus Crater on Luna. And in 2031 A.D. it was visited, charted, and claimed in the name of the Interplanetary Union by the Space Patrol rocket _Orestes_ on a settlement investigation flight. Only nobody went to live there. * * * * * For one thing, it was too small pickings to bother with. During the Space Rush of 2030-80, everybody who could beg, borrow or steal a ride on a ship was hightailing it to the more important planets. Venus, Mars, Mercury, the asteroids. Later, the Jovian satellites became popular. Slowly the frontiers pushed farther and farther out from Sol. Until now adventurers were willing to take a squint at any body in space which boasted soil, air, and a modicum of gravity. So at last, after long years of ignoring them, Earthmen were trying to become palsy-walsy with the Themisites. Oh, yes, Themis had natives. Humanoid aboriginals, not terribly unlike Earth's own children, except that they had four legs instead of two. But our side wasn't getting anywhere, and in a rush! As the Old Man had said, six times a Patrol party had landed on Themis, and six times signed a peace pact with the ruler, or Thagwar, of that globe. But each time the pact had been ignored by the Themisites as soon as a party of colonists attempted to land. The defenseless cruise-ships had been set upon, destroyed, their cargoes stolen, and their passengers brutally slaughtered! So now here we were, blithely barging in where sensible angels might justifiably hesitate to tread. It didn't make sense. I asked the skipper about it. "Look, Cap," I demanded, "maybe I'm sort of slow on the intake, but how come _we_ draw this assignment? Since the Themisites seem to want trouble, how come the Space Patrol doesn't go busting out there with rotors primed and a couple battalions to occupy the world?" "On account," explained Hanson impatiently, "Themis is populated by a race with an intelligence quotient of more than .7 on the Solar Constant scale, Sparks. And also because the race has a recognized form of government. "Accordin' to interplanetary law, colonization of civilized bodies can only be carried out with the permission of the native inhabitants, and aggressive occupation is forbidden when those inhabitants possess humanoid intelligence."