Issued monthly by Readers' Guild, Inc., 80 Lafayette Street, New York, N. Y. W. M. Clayton, President; Francis P. Pace, Secretary. Entered as second-class matter December 7, 1929, at the Post Office at New York, N. Y., under Act of March 3, 1879. Title registered as a Trade Mark in the U. S. Patent Office. Member Newsstand Group. For advertising rates address The Newsstand Group, Inc., 80 Lafayette St., New York or The Wrigley Bldg., Chicago. * * * * * Dark Moon A COMPLETE NOVELETTE _By Charles W. Diffin_ CHAPTER I _There Comes a New World_ [Illustration: _Behind them a red ship was falling--falling free!_] [Sidenote: Mysterious, dark, out of the unknown deep comes a new satellite to lure three courageous Earthlings on to strange adventures.] The one hundred and fifty-ninth floor of the great Transportation Building allowed one standing at a window to look down upon the roofs of the countless buildings that were New York. Flat-decked, all of them; busy places of hangars and machine shops and strange aircraft, large and small, that rose vertically under the lift of flashing helicopters. The air was alive and vibrant with directed streams of stubby-winged shapes that drove swiftly on their way, with only a wisp of vapor from their funnel-shaped sterns to mark the continuous explosion that propelled them. Here and there were those that entered a shaft of pale-blue light that somehow outshone the sun. It marked an ascending area, and there ships canted swiftly, swung their blunt noses upward, and vanished, to the upper levels. A mile and more away, in a great shaft of green light from which all other craft kept clear, a tremendous shape was dropping. Her hull of silver was striped with a broad red band; her multiple helicopters were dazzling flashes in the sunlight. The countless dots that were portholes and the larger observation ports must have held numberless eager faces, for the Oriental Express served a cosmopolitan passenger list. But Walter Harkness, standing at the window, stared out from troubled, frowning eyes that saw nothing of the kaleidoscopic scene. His back was turned to the group of people in the room, and he had no thought of wonders that were prosaic, nor of passengers, eager or blase; his thoughts were only of freight and of the acres of flat roofs far in the distance where alternate flashes of color marked the descending area for fast freighters of the air. And in his mind he could see what his eyes could not discern--the markings on those roofs that were enormous landing fields: Harkness Terminals, New York. * * * * *