Cadwiller Olden was only three feet tall, but he was the most dangerous man on Earth. With his legion of brutal giants and control of a massive energy force stronger than gravity, the murderous midget begins an all-out assault on all of the free nations of the world. (Also published as The Deadly Dwarf.)
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When a man dressed in buckskins sells fine furs never before seen, Doc and his aides fly to the polar wastes and deep into the Earth to find a savage land still ruled by dinosaurs.
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Doc fights the mysterious hooded Green Bell—and charges of murder!
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