Other editions of book Back to the Stone Age

Though Grosset & Dunlap did not publish a reprint of this title, they did buy the remainder stock from ERB, Inc. and produced a jacket with the same artwork as the original, but with the Grosset & Dunlap imprint at the foot of the spine. See Heins, Henry Hardy "A Golden Anniversary Bibliography of Edgar Rice Burroughs" page 140. Heins BSA-1a.

Five hundred miles beneath the surface of the Earth lies another world - a world of eternal day and endless horizons, in which dinosaurs still roam and cavemen hunt and terrors forgotten in the outer world still survive. Lieutenant von Horst, member of an exploring expedition, was left behind in this lost land of Pellucidar. Back To The Stone Age is the thrilling story of his perilous adventures, along with the cavegirl he loved, in that primitive unknown world.

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 Stone Age peoples, mighty reptiles, and huge anima...

Five hundred miles beneath the surface of the Earth lies another world - a world of eternal day and endless horizons, in which dinosaurs still roam and cavemen hunt and terrors forgotten in the outer world still survive. Lieutenant von Horst, member of an exploring expedition, was left behind in this lost land of Pellucidar. Back To The Stone Age is the thrilling story of his perilous adventures, along with the cavegirl he loved, in that primitive unknown world.

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 Stone Age peoples, mighty reptiles, and huge animals that have been extinct on the outer crust for thousands of years. But woven among the tales of savage cave men in the country of the Basti, the hideous Gorbuses in the caverns beneath the Forest of Death, and the terrible Gaz is the story of the love this cultured hero feels for a barbarian slave girl who has spurned and discouraged him, working instead toward her own mysterious goal.

Five hundred miles beneath the surface of the Earth lies another world - a world of eternal day and endless horizons, in which dinosaurs still roam and cavemen hunt and terrors forgotten in the outer world still survive. Lieutenant von Horst, member of an exploring expedition, was left behind in this lost land of Pellucidar. Back To The Stone Age is the thrilling story of his perilous adventures, along with the cavegirl he loved, in that primitive unknown world.

Five hundred miles beneath the surface of the Earth lies another world - a world of eternal day and endless horizons, in which dinosaurs still roam and cavemen hunt and terrors forgotten in the outer world still survive. Lieutenant von Horst, member of an exploring expedition, was left behind in this lost land of Pellucidar. Back To The Stone Age is the thrilling story of his perilous adventures, along with the cavegirl he loved, in that primitive unknown world.