Cover by Earle K. Bergey. Includes "What Mad Universe" by Fredric Brown (first published appearance of this novel).

Includes "Gild The Sword With Gold" by Phil R. Sheridan

Includes "Invasion From The Sky" by Curtis Steele.

Continuing from DETECTIVE-DRAGNET.

Features "Waves of Death" by Kenneth Robeson.

Cover by John Howitt. Includes "Scourge Of The Invisible Death" by Curtis Steele.

Includes "The Suicide Battalion" by Curtis Steele.

Features "The Magic Forest" by Kenneth Robeson.

Cover by John Howitt. Includes "The League Of War Monsters" by Curtis Steele.

Includes "The Quest Beyond The Stars" by Edmond Hamilton.

The early issues were published in the format of Macfadden's "true story" magazines. To add versimilitude, the magazine was illustrated with double-exposure photographs and the stories often carried double bylines in the form "by X as told to Y," where X

Cover by John Howitt. Includes "King Of The Red Killers" by Grant Stockbridge.

Rare.

Rare.

Final issue. Includes "Emeralds Of The Inca" by George Creel.

Final issue. Cover by Emsh. Includes "Gateway To Paradise" by Jack Williamson.

Cover by Alex Schomburg. Includes "Death Of Iron" by S. S. Held.

Includes "Twice In Time" by Manly Wade Wellman.

Includes "The Onslaught From Rigel" by Fletcher Pratt.

Final issue thus, continuing as THRILLING WONDER STORIES.

Continued from AIR WONDER STORIES.

Final issue.

Includes "How Model Builders Help The Industry" by John Sprague.

Including "Curse Of The Calaboose Brand" by J. Edward Leithead.

Cover by Jon Arfstrom. Digest size.

Cover by Lee Brown Coye. Includes "Notebook Found In A Deserted House" by Robert Bloch.

Cover by John Giunta. Includes "Kingsridge 214" by August Derleth.

Cover by Lee Brown Coye. Includes "Mrs. Lannisfree" by August Derleth.

Cover by A. R. Tilburne. Includes "Bang! You're Dead" by Ray Bradbury.

Cover by Virgil Finlay. Includes "Spotted Satan" by Otis A. Kline.

Cover by Hannes Bok. Includes "Mannikins Of Horror" by Robert Bloch.

Cover by Rogers. Includes "There Shall Be Darkness" by C. L. Moore.

Cover by Margaret Brundage. Includes "The Salem Horror" by Henry Kuttner.

Cover by Margaret Brundage. Includes "Lansing's Luxury" by August Derleth.

Includes "The Shadow Over Innsmouth" by H. P. Lovecraft.

Cover by Margaret Brundage. Includes "The Graveyard Rats" by Henry Kuttner.

Cover by Margaret Brundage. Includes "The Satin Mask" by August W. Derleth.

Cover by Margaret Brundage. Includes "The Six Sleepers" by Edmond Hamilton.

Cover by Margaret Brundage. Includes "The Black Gargoyle" by Hugh B. Cave.

Cover by J. Allen St. John. Includes "Bucaneers Of Venus (Part 2)" by Otis Adelbert Kline.

Cover by C. C. Serf. Includes "King Of The Night" by Robert E. Howard.

Includes "The Bones" by Theodore Sturgeon & James H. Beard.

Includes "The Room" by L. Ron Hubbard.

Includes "The Hag Seleen" by Theodore Sturgeon & James H. Beard.

Includes "Solomon's Stone" by L. Sprague de Camp.

Cover by H. W. Scott. Includes "None But Lucifer" by H. L. Gold & L. Sprague de Camp.

Cover by H. W. Scott. Includes "Danger In The Dark" by L. Ron Hubbard.

Cover by Graves Gladney. Includes "The Ghoul" by L. Ron Hubbard.

Includes "The Time Machine" by H. G. Wells. Cover by Anderson.

Cover by Jack Coggins. Includes "Booby Prize" by George O. Smith.

Cover by Emsh. Includes "Cholwell's Chickens" by Jack Vance.

Includes "Brand Of The Black Bat" by G. Wayman Jones. Introduction and 1st appearance of The Black Bat.

Includes "Planet Of The Small Men" by Murray Leinster.

Includes "The Lonely Planet" by Murray Leinster.

Cover by Earle Bergey. Includes "The Lake Of The Gone Forever" by Leigh Brackett.

Includes "The Deadly Dust" by William Fitzgerald.

Features "Undermost" by Manly Wade Wellman and "Rocket Skin" by Ray Bradbury.

Includes "Land Of The Burning Sea" by Malcolm Jameson.

Includes "Nazi Terror Over New York" by Robinson MacLean.

Includes "The Infinite Moment" by Henry Kuttner.

Features "Gems of Doom" by Maxwell Grant.

Includes "The Seven Sleepers" by Henry Kuttner & A.. Barnes.

Includes "The Day Of The Conquerors" by Manly Wade Wellman.

Includes "Dawn Of Flame" by Stanley G. Weinbaum.

Includes "Hollywood On The Moon" by Henry Kuttner

Includes "Invaders From The Outer Suns" by Frank Belknap Long, Jr.

Continued from WONDER STORIES. Includes "Blood of the Moon" by Ray Cummings.

Includes "Master of the Walking Dead" by Joseph J. Millard

Only issue.

Features "Kill Them First" by Clifford Goodrich.

Final issue of first series.

Cover by John Howitt. Includes "The Corpse Cargo" by Grant Stockbridge.

Features novel "Black Daylight" by Wallace Brooker starring Captain Fury, a Doc Savage clone.

Cover by Gilmore. Includes "Discord In Scarlet" by A. E. van Vogt.

Winter issue includes "The Magigals Mystery" by Maxwell Grant.

Includes "The Money Master" by Maxwell Grant.

Includes "Dictator's Death-Merchants" by Grant Stockbridge.

Includes "The Northdale Mystery" by Maxwell Grant.

Features "Vengeance Bay" by Maxwell Grant.

Features "The Book of Death" by Maxwell Grant.

Features "Alibi Trail" by Maxwell Grant.

"Sky Coffins for Satan" by Robert J. Hogan.

Features "Suicide Trail" by Clifford Goodrich.

Cover by John Howitt. Includes "Invasion Of The Dark Legions" by Curtis Steele.

Cover by Frank Kelly Freas. Includes "Sexton, Sexton, In The Wall" by August Derleth.

Final issue.

Cover by Jerome Rozen. Includes "The Case Of The Six Coffins" by Robert J. Hogan.

Continuing from ORIENTAL STORIES. Cover design by Brundage. Includes "The Master Of Dragons" by H. Bedford Jones.