Beneath the deserts of Saudi Arabia lie dark chambers and complex mazes. Formed over hundreds and thousands of years, these caves were first discovered and explored by Saudi Arabia's Bedouin, to whom they represented a respite from one of the harshest and most extreme environments on Earth. Today however, the goal is not to survive, but to discover. Those who crawl into the dark voids, do so to see another world, utterly unlike the one on the surface. This book, with its unique photographs, will amaze and inspire.