Back to the Stone Age - Burroughs, Edgar Rice, and Dunham, Gary H (Introduction by)

The fifth installment of Edgar Rice Burroughs's Pellucidar series, Back to the Stone Age recounts the strange adventures of Lieutenant von Horst, a member of the original crew that sailed to Pellucidar with Jason Gridley and Tarzan who is left behind in the inner world. Von Horst wanders friendless and alone from one danger to the next among the ... Read More

Back to the Stone Age 2014, Bottom of the Hill Publishing

ISBN-13: 9781483706337

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Back to the Stone Age 2007, Bison Books, Lincoln, NE

ISBN-13: 9780803262638

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Back to the Stone Age 1974, TBS The Book Service Ltd

ISBN-13: 9780426131861

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