COSMIC YO-YO By ROSS ROCKLYNNE "Want an asteroid in your backyard? We supply 'em cheap. Trouble also handled without charge." Interplanetary Hauling Company. (ADVT.) [Transcriber's Note: This etext was produced from Planet Stories Summer 1945. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.] Bob Parker, looking through the photo-amplifiers at the wedge-shaped asteroid, was plainly flabbergasted. Not in his wildest imaginings had he thought they would actually find what they were looking for. "Cut the drive!" he yelled at Queazy. "I've got it, right on the nose. Queazy, my boy, can you imagine it? We're in the dough. Not only that, we're rich! Come here!" Queazy discharged their tremendous inertia into the motive-tubes in such a manner that the big, powerful ship was moving at the same rate as the asteroid below--47.05 miles per second. He came slogging back excitedly, put his eyes to the eyepiece. He gasped, and his big body shook with joyful ejaculations. "She checks down to the last dimension," Bob chortled, working with slide-rule and logarithm tables. "Now all we have to do is find out if she's made of tungsten, iron, quartz crystals, and cinnabar! But there couldn't be two asteroids of that shape anywhere else in the Belt, so this has to be it!" He jerked a badly crumpled ethergram from his pocket, smoothed it out, and thumbed his nose at the signature. "Whee! Mr. Andrew S. Burnside, you owe us five hundred and fifty thousand dollars!" Queazy straightened. A slow, likeable smile wreathed his tanned face. "Better take it easy," he advised, "until I land the ship and we use the atomic whirl spectroscope to determine the composition of the asteroid." "Have it your way," Bob Parker sang, happily. He threw the ethergram to the winds and it fell gently to the deck-plates. While Queazy--so called because his full name was Quentin Zuyler--dropped the ship straight down to the smooth surface of the asteroid, and clamped it tight with magnetic grapples, Bob flung open the lazarette, brought out two space-suits. Moments later, they were outside the ship, with star-powdered infinity spread to all sides. In the ship, the ethergram from Andrew S. Burnside, of Philadelphia, one of the richest men in the world, still lay on the deck-plates. It was addressed to: Mr. Robert Parker, President Interplanetary Hauling & Moving Co., 777 Main Street, Satterfield City, Fontanaland, Mars. The ethergram read: