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| Publisher |
DC |
| Series |
Challengers of the Unknown |
| Published | February 1968 |
| Artist |
Bob Brown |
| Inker |
Bob Brown |
| Cover Artist |
Bob Brown |
| Letterer |
Ira Schnapp |
| Letterer |
Stan Starkman |
The Thing That Could Not Die: The team discovers that Red is not dead but has drank the liquid light formula and become a crazed criminal. 2 Hours to Die!: Prof is trapped in his mini-sub and the team has two hours to rescue him before a bomb explodes.