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| Publisher |
DC |
| Series |
Challengers of the Unknown |
| Published | October 1969 |
| Artist |
Jack Sparling |
| Writer |
Dennis O'Neil |
| Writer |
Murray Boltinoff |
| Artist |
Nick Cardy |
| Cover Artist |
Nick Cardy |
| Inker |
Frank Giacoia |
| Letterer |
John Costanza |
| Letterer |
Irv Watanabe |
When Evil Calls!