The further adventures of David Innes and Abner Perry at the Earth's core. We learn of new developments occuring in Pellucidar, including the capture of Tanar t
Can Humans Prevail Underneath Earth’s Crust? “It is always a foolish thing to contemplate suicide; for no matter how dark the future may appear today, tomor
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 th