About the book: 2024 / The Universe is multiple and diverse. And filled with many worlds. Parallel worlds - either according to Euclid or according to Lobachevsky - and perpendicular, analogous and alternative, with magic and without magic, rapidly changing and frozen for millennia. And to get from one world to another, you need to use interstellar and interplanetary ships, time machines and magical artifacts. And sometimes an indifferent official voice reading out a long, boring official text is enough, and you find yourself, without moving anywhere, in a completely different, unfamiliar and dangerous world. Return is impossible, and you must either die or survive. And running away is just one way to commit suicide. And everything around is like in a nightmare, and I can’t wake up. Mr. Professor Sigmund Freud, what kind of world is this in which such dreams occur??