So begins mankind's realization that the under-world is a vast geological labyrinth riddling the continents and seabeds, one inhabited by brutish creatures who resemble the devils and gargoyles of legend. With all of Hell's precious resources and territories to be won, a global race ensues. Nations, armies, religions, and industries rush to colonize and exploit the subterranean frontier.

A scientific expedition is launched westward to explore beneath the Pacific Ocean floor, both to catalog the riches there and to learn how life could develop in the sunless abyss. Is there a natural explanation, as the scientists hope? Or is there a true supernatural basis? Are the "demons" part of our evolutionary family tree? Is their enigmatic leader merely a freak genius, or could he be the legendary Satan?

Fathom by fathom, Ike guides the expedition -- and Ali -- deeper into the deadly stone wilderness. In the dark underground, as humanity falls away from them, the scientists and mercenaries find themselves prey not only to the savage creatures, but to their own treachery, mutiny, and greed. Meanwhile, on the surface, a band of aged scholars scours archaeological digs, museums, artifacts, and rare texts for clues to Satan'sexistence. Is he lurking in wait for the expedition, or is he roaming the earth? Or is he dead? One thing is certain: Miles inside the earth, evil is very much alive.

In the tradition of Jules Verne and H. G. Wells, The Descent is an epic adventure through fantastic landscapes, among creatur