onster 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._

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Out of the Dreadful Depths

_By C. D. Willard_

[Illustration: "_Help--help--the eyes--the eyes!_"]

[Sidenote: Robert Thorpe seeks out the nameless horror that is sucking
all human life out of ships in the South Pacific.]

Robert Thorpe reached languidly for a cigarette and, with lazy
fingers, extracted a lighter from his pocket.

"Be a sport," he repeated to the gray haired man across the table. "Be
a sport, Admiral, and send me across on a destroyer. Never been on a
destroyer except in port. It ... would be a new experience ... enjoy
it a lot...."

In the palm-shaded veranda of this club-house in Manila, Admiral
Struthers, U. S. N., regarded with undisguised disfavor the young man
in the wicker chair. He