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| Publisher |
DC |
| Published | January 1981 |
TREASURE HUNT ON A SMALL PLANET / BEYOND THE POSEIDON ADVENTURE Superman must discover why alien beings are stealing dams and factories on Earth. Ocean Master survives the fall, but Amphitrite, who now commands him, sends Poseidon in his place to fight Aquaman, who now suspects that Ocean Masters mother (his fathers second wife) may still be alive.
