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| Publisher |
DC |
| Series |
Challengers of the Unknown |
| Published | September 1991 |
| Cover Artist |
Art Adams |
| Writer |
Jeph Loeb |
| Artist |
Tim Sale |
| Colorist |
Lovern Kindzierski |
| Letterer |
Bob Pinaha |
The Challengers find Prof just as they left him. June, however, is another story entirely - she's pregnant!