Produced by Sankar Viswanathan, Greg Weeks, and the Online Distributed Proofreading Team at http://www.pgdp.net ASTOUNDING STORIES OF SUPER-SCIENCE _On Sale the First Thursday of Each Month_ W. M. CLAYTON, Publisher HARRY BATES, Editor DOUGLAS M. DOLD, Consulting Editor The Clayton Standard on a Magazine Guarantees _That_ the stories therein are clean, interesting, vivid, by leading writers of the day and purchased under conditions approved by the Authors' League of America; _That_ magazines are manufactured in Union shops by American workmen; _That_ each newsdealer and agent is insured a fair profit; _That_ an intelligent censorship guards their advertising pages. The other Clayton magazines are: ACE-HIGH MAGAZINE, RANCH ROMANCES, COWBOY STORIES, CLUES, FIVE-NOVELS MONTHLY, WIDE WORLD ADVENTURES, ALL STAR DETECTIVE STORIES, RANGELAND LOVE STORY MAGAZINE, WESTERN ADVENTURES, and FOREST AND STREAM. _More Than Two Million Copies Required to Supply the Monthly Demand for Clayton Magazines._ * * * * * VOL. II, No. 3 CONTENTS JUNE, 1930 COVER DESIGN H. W. WESSOLOWSKI _Painted in Water-colors from a Scene in "The Moon Master."_ OUT OF THE DREADFUL DEPTHS C. D. WILLARD 293 _Robert Thorpe Seeks Out the Nameless Horror That Is Sucking All Human Life Out of Ships in the South Pacific._ MURDER MADNESS MURRAY LEINSTER 310 _Bell, of the Secret "Trade," Strikes into the South American Jungle to Find the Hidden Stronghold of the Master--the Unknown Monster Whose Diabolical Poison Swiftly and Surely Is Enslaving the Whole Continent._ (Part Two of a Continued Novel.) THE CAVERN WORLD JAMES P. OLSEN 340 _A Great Oil Field Had Gone Dry--and Asher, Trapped Far under the Earth Among the Revolting Petrolia, Learns Why._ BRIGANDS OF THE MOON RAY CUMMINGS 352 _The Besieged Earth-men Wage Grim, Ultra-scientific War with Martian Bandits in a Last Great Struggle for Their Radium-ore--and Their Lives._ (Conclusion.) GIANTS OF THE RAY TOM CURRY 368 _Madly the Three Raced for their Lives up the Shaft of the Radium Mine, for Behind Them Poured a Stream of Hideous Monsters--Giants of the Ray!_ THE MOON MASTER CHARLES W. DIFFIN 384 _Through Infinite Deeps of Space Jerry Foster Hurtles to the Moon--Only to be Trapped by a Barbaric Race and Offered as a Living Sacrifice to Oong, their Loathsome, Hypnotic God._ (A Complete Novel.) THE READERS' CORNER ALL OF US 421 _A Meeting Place for Readers of Astounding Stories._