Our planet is crawling with hidden extraterrestrial civilizations that have been here for a very long time. Some were founded before the first human civilization arose. Emery Smith reveals that there are many different biospheres perfectly acclimatized to support life from distant worlds, scattered all around our planet. From Antarctic bases deep under the ice to aquatic being living in the depths of the sea, most are human and human-looking, some are shape shifting, to blend in with our society.
