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Includes "Pony Express Rider" by A. Leslie.
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"Wings of the Gray Phantom" by Robert J. Hogan.
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Includes "The Seven Sleepers" by Henry Kuttner & A.. Barnes.
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Includes "Hang Him High" by Norbert Davis.
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Cover by Jack Coggins. Includes "Turncoat" by Damon Knight
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Cover by Ray Quigley. Includes "Seven Seconds Of Eternity" by Robert H. Leitfred.
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Two alternate covers are known to exist.
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Cover by Margaret Brundage. Includes "Death Holds The Past" by August Derleth & Mark Schorer.
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Includes "Three Guns For Tonto" by W. C. Tuttle.
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Includes "Killer, What's Your Name?" by Frederick C. Davis.
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Cover by Walter Popp. Includes "Centaurus" by Sam Merwin, Jr.
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Cover by John Howitt. Includes "Cavern Of The Damned" by Curtis Steele.
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Cover by Earle Bergey. Includes "The Energy Eaters" by Arthur K. Barnes & Henry Kuttner.
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Includes "Run, Tiger!" by Donald Barr Chidsey.
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Cover by Walter Popp. Includes "The Conditioned Captain" by Fletcher Pratt.
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Cover by Earle K. Bergey. Includes "A Million Years To Conquer" by Henry Kuttner.
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Includes "The Nightmare Town" by Dashiell Hammett.
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Cover by Rogers. Includes "Time Wants A Skeleton" by Ross Rocklynne.
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Includes "Winged Warriors" by Lieut. Scott Morgan
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Includes "The Onslaught From Rigel" by Fletcher Pratt.
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Includes "The Dagger In The Sky" by Kenneth Robeson.
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Continuing from AIR TRAILS.
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"Squadron of the Damned" by Robert J. Hogan.
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Cover by J. Allen St. John. Includes "Bucaneers Of Venus (Part 1)" by Otis Adelbert Kline.
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Final issue. Cover by Emsh. Includes "Gateway To Paradise" by Jack Williamson.
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Cover by Joseph Eberle. Includes "A Corner For Lucia" by August Derleth.
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"Red Wings for the Death Patrol" by Robert J. Hogan.
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Features "Blood Donor Boomerang" by Frederick C. Davis.
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Includes "The Money Master" by Maxwell Grant.
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Cover by John Howitt. Includes "Citadel Of Hell" by Grant Stockbridge.
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Includes "We Fly The Silvaire De Luxe" by William Winter.
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Cover by Rogers. Includes "Universe" by Robert Heinlein.
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Cover by Alex Schomburg. Includes "The Houses Of Iszm" by Jack Vance.
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Cover by Jack Coggins. Includes "The Amateur Alchemist" by Murray Leinster.
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Cover by Virgil Finlay. Includes "Spawn Of The Maelstrom" by August Derleth & Mark Schorer.
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Cover by Matt Fox. Includes "The Night" by Ray Bradbury.
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Includes "Purpose" by Ray Bradbury. Cover by Earle Bergey.
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Cover by Harold S. DeLay. Includes "The Dark Isle" by Robert Bloch.
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Cover by Howard V. Brown. Includes feature novel "Blue Magic" by Charles Willard Diffin. Also "The Red Peri" by Stanley G. Weinbaum.
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Features "Peril in the North" by Kenneth Robeson.
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Includes "Man Alive!" by Frederick C. Painton.
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Cover by A. R. Tilburne. Includes "A Question Of Etiquette" by Robert Bloch.
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Cover by Rudolph Belarski. Includes "The Purple Warriors Of Neptunia" by Arthur Guy Empy.
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"The Patrol to End the World" by Robert J. Hogan.
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Includes "Fear" by L. Ron Hubbard. First publication of this novel.
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Cover by M. Isip. Includes "The Roaring Trumpet" by L. Sprague de Camp & Fletcher Pratt.
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Cover by Earle K. Bergey. Includes "The Man In The Iron Cap" by Murray Leinster.
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Cover by Earle K. Bergey. Includes "The Great Ego" by Norman A. Daniels.
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Includes "Hang Him High" by Norbert Davis.
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Cover by William Timmins. Includes "The Weapon Shop" by A. E. van Vogt.
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Includes "Mystery On Happy Bones" by Kenneth Robeson.
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Cover by Rudolph Belarski. Includes "O'Leary's Byno-Blaster" by Arthur Guy Empy.
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Includes "The Triumph Of Captain Future" by Edmond Hamilton.
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Cover by H. W. Scott. Includes "Danger In The Dark" by L. Ron Hubbard.
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Includes "Tomb for the Living" by Justin Case.
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Features "Gems of Doom" by Maxwell Grant.
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Cover by H. W. Scott. Includes "Soldiers Of The Black Goat" by Marian O'Hearn.
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Cover by John Howitt. Includes "King Of The Red Killers" by Grant Stockbridge.
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Includes "Merchants of Disaster" by Kenneth Robeson
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Includes "Brand Of The Black Bat" by G. Wayman Jones. Introduction and 1st appearance of The Black Bat.
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Includes "Plains Soaring" by Lewin Barringer.
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Includes a 16-page color comics section.
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Cover by Virgil Finlay. Includes "The Drifting Snow" by August Derleth.
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Cover by Earle Bergey. Includes "The Blue Flamingo" by Hannes Bok.
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Cover by F. Tinsley. Includes "The Blood-Red Road To Petra" by George L. Eaton.
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Cover by Matt Fox. Includes "The Underbody" by Allison V. Harding.
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"The King of Terror" by Kenneth Robeson.
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Includes "Gild The Sword With Gold" by Phil R. Sheridan
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Final issue. "The Mystery of the Singing Mummies" by Donald E. Keyhoe.
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Includes "Captain Future And The Space Emperor" by Edmond Hamilton.
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Features "Blood Donor Boomerang" by Frederick C. Davis.
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Includes "Little Horses, What Now?" by Richard Wormser.
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"Death Is My Destiny" by Robert J. Hogan.
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"Wings of the Iron Claws" by Robert J. Hogan.
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