Deep within the Earth below the Bucegi Mountains in Romania is a holographic library left by an advanced civilization. Tunnels from this library lead into Inner Earth, where a long-buried culture once thrived along with what appears to be a time machine. Force-fields protect the place, designed for 16-foot-tall beings. Is this a thriving, as-yet undiscovered colony beneath our feet, evidence of extraterrestrial visitation of UFOs, or our own species in some earlier incarnation? Is Inner Earth a parallel universe intersecting across time and space, or is it something we as yet do not understand?