"The Condor Rides With Death" by Robert J. Hogan.

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

Rare.

Includes "Merchants of Disaster" by Kenneth Robeson

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

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

"Wings of the Death Monster" by Robert J. Hogan.

Features "Dead Man's Chest" by Maxwell Grant.

Includes "Tidal Moon" by Stanley G. & Helen Weinbaum.

Cover by John Howitt. Includes "The Pain Emperor" by Grant Stockbridge.

Includes "The Last Drop" by L. Ron Hubbard and de Camp.

Includes "Sands Of Sahara" by Robert Carse.

Includes "The Ether Robots" by Frank Belknap Long

Includes "Your Money's Worth In The Air" by Lieut. W. M. Wood.

Includes "The Day To Come" by Don Tracy.

Cover by Walter Baumhofer. Includes "The Spider Strikes" by R. T. M. Scott.

Cover by F. Tinsley. Includes Light Planes Of 1937" by Frank Tinsley.

Final issue.

Cover by Belarski. Includes "Watered Guns" by Walt Coburn.

Cover by H. W. Wesso. Includes "The Shadow In The Sky" by August W. Derleth.

Includes "The Humanoids" by Jack Williamson. Cover by Anderson.

Cover by Frandzen. Features "Fighting Mongrel" by George Bruce.

Features "Kill Them First" by Clifford Goodrich.

Includes "Bomers Above" by Lieut. W. M. Wood.

"Death Rides the Midnight Patrol" by Robert J. Hogan.

Cover by William Timmins. Includes "The World Is Mine" by Lewis Padgett.

Cover by Lee Brown Coye. Includes "The Whippoorwills In The Hills" by August Derleth.

Includes a 16-page color comics section.

Includes "Death In A Cockpit" by Arthur J. Burks.

Includes "The Three Planeteers" by Edmond Hamilton.

Cover by Earle K. Bergey. Includes "Sojarr Of Titan" by Manly Wade Wellman.

Includes "Son Of The Forest" by Johnston McCulley.

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

Cover by Walter Popp. Includes "Naked Eye" by Thomas Bell.

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

Cover by Margaret Brundage. Includes "The Man Who Was Two Men" by A. W. Bernal.

Cover by Alex Schomburg. Includes "The White Widows" by Sam Merwin, Jr.

Cover by H. W. Scott. Includes "Flame Winds" by Norvell W. Page.

Includes "The Mathematics Of Magic" by L. Sprague de Camp & Fletcher Pratt.

Cover by John Howitt. Includes "The Army Of The Dead" by Curtis Steele.

Includes "Hang Him High" by Norbert Davis.

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

Cover by John Howitt. Includes "Invasion Of The Crimson Death Cult" by Curtis Steele.

Features "The Awful Dynasty" by Kenneth Robeson.

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

Includes "Murder Nightmare" by Norman A. Daniels.

Final issue.

Cover by John Newton Howett. Includes "Brides For The Dead" by Hugh B. Cave.

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

"The Falcon Flies with the Damned" by Robert J. Hogan.

Includes "Asylum Satellite" by Fletcher Pratt.

"Wings of the Hawks of Death" by Robert J. Hogan.

Includes "Give Me Ten Men" by Charles Marquis Warren.

Cover by Earle Bergey. Includes "Lord Of The Storm" by Keith Hammond.

Includes "The Silver Witch" by John Peter Drummond.

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

Includes "The Pure Evil" by Kenneth Robeson.

Includes "The Shriveling Murders" by Zorro.

Cover by Virgil Finlay. Includes "The Drifting Snow" by August Derleth.

Cover by A. R. Tilburne. Includes "The Tombstone" by Ray Bradbury.

Cover by Boris Dolgov. Includes "Lizzie Borden Took An Axe" by Robert Bloch.

Cover by Ed Emsh. Includes "An Apple For The Teacher" by Robert F. Young.

Cover by Earle K. Bergey. Includes "Tarnished Utopia" by Malcolm Jameson.

Includes "Wet Magic" by Henry Kuttner.

Includes "The Devil's Paymaster" by Maxwell Grant

Cover by Ed Emsh. Includes "The Naked Sky" by James E. Gunn.

Final issue.

Includes "The Green-Eyed Monster" by Theodore Sturgeon.

Cover by Walter Popp. Includes "The Wages Of Synergy" by Theodore Sturgeon.

"The Death Master's Last Patrol" by Robert J. Hogan.

Formerly Thrilling Mystery.

"Red Fangs of the Sky Emperor" by Robert J. Hogan.

Features "Vengeance Bay" by Maxwell Grant.

Includes "The Hornet Stings" by Samuel Merwin.

Includes "Destruction Of The Panama Canal" by Don Bate.

Includes "Webbed Hands" by Ferdinand Berthoud.

Cover by Gilmore. Includes "Cold" by Nat Schachner.

Cover by Margaret Brundage. Includes "The Black Kiss" by Robert Bloch & Henry Kuttner.

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

Cover by Rogers. Includes "Jurisdiction" by Nat Schachner.

Cover by John Howitt. Includes "America's Plague Battalions" by Curtis Steele.

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

Cover by Lee Brown Coye. Includes "Home To Mother" by Manly Wade Wellman.

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