Challengers of the Unknown — DC Comics
Issue: #4
Last valuation update: 2026-09-09
The Challengers of the Unknown are called in to investigate an apparent Greek soldier who has appeared in modern times and stolen a plane and other artifacts. They learn that he was summoned by the "wizard of time," a scientist named Darius Tiko who intends to use a time cube to travel to the future and bring back powerful weapons to the present!
First appearances: Professor Harlan Fuller, Rhamis, Darius Tiko
Creators: Jack Kirby
Characters: Ace Morgan, Prof Haley, Red Ryan, Rocky Davis, Professor Harlan Fuller, Nostradamus, Rhamis, Darius Tiko