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| Publisher |
DC |
| Series |
Superman |
| Published | November 1966 |
| Artist |
Curt Swan |
| Writer |
Jim Shooter |
| Artist |
Al Plastino |
| Cover Artist |
Curt Swan |
THE PRISONER OF DEMON! The Maharajah of Sinsubhani gives Superman a power-jewel formed at the heart of the universe, and bids him wear it to keep it from the evil organization DEMON, which seeks to claim it.