Edgar Rice Burroughs

Pellucidar illustrated Edgar Rice Burroughs

Pellucidar In a crossover event between Burroughs's series, there is a Tarzan story in which he travels into Pellucidar. The stories initially involve the adventures of mining heir David Innes and his inventor friend Abner Perry after they use an "iron mole" to burrow 500 miles into the Earth's crust. Later protagonists include indigenous caveman Tanar and additional visitors from the surface world, notably Tarzan, Jason Gridley, and Frederich Wilhelm Eric von Mendeldorf und von Horst.is a fictional Hollow Earth invented by American writer Edgar Rice Burroughs for a series of action adventure stories.