"Two Faces" by Frédéric Paul is an exciting science fiction book that tells about a mysterious world where different realities interact with each other. The main character, finding himself in difficult situations and circumstances, is forced to look for a way out of difficult situations and make unforeseen decisions. The book "Two-Face" fascinates the reader with its surprise, mystery and unusual storyline, making it one of the most interesting and memorable books in the science fiction genre.