At the Earth&#39;s Core<b> </b>by Edgar Rice Burroughs. Cutting through the earth in an extraordinary burrowing device, David Innes and Abner Perry fear they may be incinerated in the planet&#39;s fiery core. Instead, they come upon Pellucidar - a savage, primordial world hidden several hundred miles beneath the earth&#39;s crust. There in an eerie, subterranean realm of vast oceans, lush jungles, and eternal noon, they encounter primitive humans and their beautiful, courageous queen, Dian.