Produced by Sankar Viswanathan, Greg Weeks, and the Online Distributed Proofreading Team at http://www.pgdp.net [Illustration:] ASTOUNDING STORIES OF SUPER-SCIENCE 20¢ _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_ such 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. 2 CONTENTS MAY, 1930 COVER DESIGN H. W. WESSOLOWSKI _Painted in Water-colors from a Scene in_ "_The Atom-Smasher_." INTO THE OCEAN'S DEPTHS SEWELL PEASLEE WRIGHT 151 _To Save Imee's Race of Men-Who-Returned-To-The-Sea, Two Land-Men Answer the Challenge of the Dreaded Rorn, Corsairs of the Under-Seas._ MURDER MADNESS MURRAY LEINSTER 166 _Murder Madness! Seven Secret Service Men Had Completely Disappeared. Another Had Been Found a Screaming, Homicidal Maniac, Whose Fingers Writhed Like Snakes. So Bell, of the Secret "Trade," Plunges into South America After The Master--the Mighty, Unknown Octopus of Power Whose Diabolical Poison Threatens a Continent!_ (_Beginning a Four-part Novel._) BRIGANDS OF THE MOON RAY CUMMINGS 195 _Gregg and Anita Risk Quick, Sure Death in a Desperate Bluff on the Ruthless Martian Brigands._ (_Part Three of a Four-part Novel._) THE JOVIAN JEST LILITH LORRAINE 228 _There Came to Our Pigmy Planet a Radiant Wanderer with a Message--and a Jest--from the Vasty Universe._ THE ATOM-SMASHER VICTOR ROUSSEAU 234 _Four Destinies Rocket Through the Strange Time-Space of the Fourth Dimension in Tode's Marvelous Atom-Smasher._ (_A Complete Novelette._) THE READERS' CORNER ALL OF US 277 _A Meeting Place for Readers of Astounding Stories._ Single Copies, 20 Cents (In Canada, 25 Cents) Yearly Subscription, $2.00