Hành Trình Bí Ẩn Vào Lòng Đất Sâu Thẳm - Thông Điệp Từ Địa Cầu Rỗng, Phần 2/2

Earth’s core is inhabited by a population of highly advanced beings, both spiritually and technologically. These residents came from outer space in search of a quiet place to continue their evolution, and also assist our planet’s surface dwellers in their own progress.