When two friends wander down a maze of underground tunnels, they stumble upon the entrance to another world populated with a race of advanced humanoid beings. These gorgeous subterranean creatures hold immense power by means of Vril energy, and they’ve got a storyline to overcome the overworld. This 1871 sci-fi novel presents a remarkable story about society, science, and school of thought. A best-seller in its day, this supernatural Victorian travel story holds its own among the favorite dystopian works of today.