The book tells about the unexpected arrival of alien guests on Earth. It turned out that these aliens are people from another planet who are distributed throughout the galaxy, but our race has no idea about them. Aliens offer people a unique technology for transferring consciousness into a virtual world known as “Etheria,” which was discovered by the “Xarov” race. The book reveals the history of the emergence of "Etheria" and the transition of most states to this virtual world, where military operations are carried out without physical losses. The heroes of the book find themselves participating in the “Game” project and are trying to master the new world, unravel its secrets and adapt to the new rules of life. "Etheria" turns into an exciting adventure that forces the heroes to face dangers and go beyond the boundaries of familiar reality in search of their place in the virtual universe. Published in the author's edition, preserving the author's spelling and punctuation.