"Modernity and Science Fiction" - a series of books of Russian science fiction.... A scientist dealing with anomalous phenomena managed to shoot a ghost with a digital camera. He did not even suspect that the phantom would break out into the Internet, and our contemporary, a lover of jokes and practical jokes, would go to the 13th century. Seeing Alexander Nevsky alive is cool! But to be in a face-to-face battle with the Swedish knights is no longer a joke...