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Pellucidar is a 1915 fantasy novel by Edgar Rice Burroughs, the second in his series about the fictional "hollow earth" land of Pellucidar. It first appeared as a four-part serial in All-Story Weekly from May 8–29, 1915. It was first published in book form in hardcover by A. C. McClurg in September, 1923. A map by …
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The Master Mind of Mars is an Edgar Rice Burroughs science fantasy novel, the sixth of his famous Barsoom series. Burroughs' working titles for the novel were A Weird Adventure on Mars and Vad Varo of Barsoom. It was first published in the magazine Amazing Stories Annual vol. 1, July 15, 1927. The first book edition …
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