Includes "Purpose" by Ray Bradbury. Cover by Earle Bergey.

"Wings of the Gray Phantom" by Robert J. Hogan.

Cover by Earle K. Bergey. Includes "The Man In The Iron Cap" by Murray Leinster.

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

"The King of Terror" by Kenneth Robeson.

"The Patrol to End the World" by Robert J. Hogan.

Cover by Rudolph Belarski. Includes "O'Leary's Byno-Blaster" by Arthur Guy Empy.

Cover by Walter Popp. Includes "Centaurus" by Sam Merwin, Jr.

Two alternate covers are known to exist.

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

Final issue. "The Mystery of the Singing Mummies" by Donald E. Keyhoe.

Includes "Winged Warriors" by Lieut. Scott Morgan

Includes "Captain Future And The Space Emperor" by Edmond Hamilton.

Features "Blood Donor Boomerang" by Frederick C. Davis.

Includes "Tomb for the Living" by Justin Case.

Cover by J. Allen St. John. Includes "Bucaneers Of Venus (Part 1)" by Otis Adelbert Kline.

Includes "Little Horses, What Now?" by Richard Wormser.

"Death Is My Destiny" by Robert J. Hogan.

Includes "The Onslaught From Rigel" by Fletcher Pratt.

"Wings of the Iron Claws" by Robert J. Hogan.

"Squadron of the Damned" by Robert J. Hogan.

Cover by Jack Coggins. Includes "Turncoat" by Damon Knight

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

Cover by M. Isip. Includes "The Roaring Trumpet" by L. Sprague de Camp & Fletcher Pratt.

Includes "Mystery On Happy Bones" by Kenneth Robeson.

Includes "Run, Tiger!" by Donald Barr Chidsey.

Cover by Rudolph Belarski. Includes "The Purple Warriors Of Neptunia" by Arthur Guy Empy.

Includes "Three Guns For Tonto" by W. C. Tuttle.

Cover by Ed Emsh. Includes "The Spiral Of The Ages" by Fletcher Pratt.

Cover by Earle Bergey. Includes "Lands Of The Earthquake" by Henry Kuttner.

Includes "The Money Master" by Maxwell Grant.

Final issue.

"The Mark of the Vultures" by Robert J. Hogan.

Cover by Rogers. Includes "Universe" by Robert Heinlein.

Includes "A Violation Of Rules" by Fletcher Pratt.

Includes "Killer, What's Your Name?" by Frederick C. Davis.

Includes "Fear" by L. Ron Hubbard. First publication of this novel.

Cover by Margaret Brundage. Includes "Come To Me!" by August W. Derleth.

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

Cover by Margaret Brundage. Includes "The Faceless God" by Robert Bloch.

Cover by Margaret Brundage. Includes "The Canal" by H. P. Lovecraft.

Cover by John Newton Howett. Includes "Things That Once Were Men" by Wyatt Blassingame.

Cover by W. H. Silvey. Digest size. Includes "Effie's Pets" by Suzanne Pickett.

Cover by William Timmins. Includes "The Weapon Shop" by A. E. van Vogt.

Cover by Earle K. Bergey. Includes "A Million Years To Conquer" by Henry Kuttner.

Cover by John Howitt. Includes "Reign Of The Death Fiddler" by Grant Stockbridge.

Cover by Alex Schomburg. Includes "The Star Watchers" by Eric Frank Russell.

Cover by Earle Bergey. Includes "The Energy Eaters" by Arthur K. Barnes & Henry Kuttner.

Features "Masters of Death" by Maxwell Grant.

Cover by Matt Fox. Includes "The Night" by Ray Bradbury.

Cover by Rogers. Features "Briddle and Saddle" by Isaac Asimov and "The Slaver" by L. Ron Hubbard.

Includes "Hang Him High" by Norbert Davis.

Includes "Merchants of Disaster" by Kenneth Robeson

Includes "We Fly The Silvaire De Luxe" by William Winter.

Rare.

Features "Blood Donor Boomerang" by Frederick C. Davis.

"Red Wings for the Death Patrol" by Robert J. Hogan.

Cover by Walter Popp. Includes "The Conditioned Captain" by Fletcher Pratt.

Continuing from AIR TRAILS.

Final issue.

Cover by Earle K. Bergey. Includes "The Great Ego" by Norman A. Daniels.

Includes "A God In A Garden" by Theodore Sturgeon.

Cover by Earle K. Bergey. Includes "The Lovers" by Philip Jose Farmer. Featuring George Chance, a stage magician turned hero, The Ghost, Super-Detective (as it was originally called) was a low-budget effort from the start, featuring only the lead novel

Includes "The Bridge To Earth" by Robert Moore Williams.

Cover by Earle Bergey. Includes "Earthmen No More" by Edmond Hamilton.

Cover by F. Tinsley. Includes "The Black Hawk" by George L. Eaton.

Cover by Alex Schomburg. Includes "The Hellflower" by George O. Smith.

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

Includes "Tarzan And The Golden Lion" by Edgar Rice Burroughs.

Cover by Margaret Brundage. Includes "Doctor Satan" by Paul Ernst.

Includes "The Voice Of The Lobster" by Henry Kuttner.

Cover by John Howitt. Includes "March Of The Flame Marauders" by Curtis Steele.

"Squadron of the Flying Death" by Robert J. Hogan.

Cover by John Howitt. Includes "Rockets From Hell" by Curtis Steele.

Only issue.

Only issue.

Cover by Earle Bergey. Includes "Don't Look Now" by Henry Kuttner.