The secret of Mangazeya, the ancient capital of Siberia, attracted many, but it was discovered not by venerable scientists who denied the very possibility of the existence of a medieval metropolis beyond the Arctic Circle, but by yesterday’s students, who went at their own peril and risk in search of a dream. The result exceeded the wildest expectations, glory, honor and wealth lie ahead. All that was left to do was to return to civilization, to return sick with scurvy from the icy desert after a hard winter. But here everything is not so scary, because a yacht should be waiting on the coast, and the expedition has a radio, and the Penguin gets in touch. The cover design uses a fragment of a photograph of the polar observatory "Matochkin Shar" from 1926, published in the magazine "Radio" No. 6, 1972.