- Script
- Steve C. Douglas
- Pencils
- ?
- Inks
- ?
- Colors
- ?
- Letters
- typographie
- Genre
- super-héros (superhero)
- Script
- Jack Kirby (scénario, script); Dave Wood (script)
- Pencils
- Jack Kirby
- Inks
- Jack Kirby ?; Rosalind Kirby (noirs)
- Colors
- ?
- Letters
- ?
- Genre
- aventure (adventure)
- Characters
- Challengers de l'inconnu [Ace Morgan; Prof Haley; Red Ryan; Rocky Davis] (introduction, origine); Mr. Morelian (introduction, meurt)
- Synopsis
- Four heroes are being flown to appear on the radio show "Heroes" when their jet crashes in a storm. Miraculously, all four survive unharmed, even down to a working watch. Since they are "living on borrowed time", they vow to make the best use of it, taking risks to benefit others, challenging the unknown. (Origin, introduction, and first appearance of the team.) In their first official case, they are summoned by Morelian, a descendant of Merlin, to open four chambers of a dangerous alchemist's box and "witness things not seen on this Earth since the dawn of Man!"
- Reprints
- Script
- E. Nelson Bridwell
- Pencils
- Ramona Fradon
- Inks
- Bob Smith
- Colors
- ?
- Letters
- ?
- Genre
- super-héros (superhero)
- Characters
- Superman; Batman; Wonder Woman; Aquaman; Robin; Wendy; Marvin; Wonderdog; Alfred Pennyworth; Greenback (introduction); Larry Davis (Funnyman); Carlo Di Rienzi (of the Secret Six); Tony Stark (en coulisse)
- Reprints