A mysterious magnetic spool found during a construction project is discovered to have originated from Venus. A rocket expedition to Venus is launched to discover the origin of the spool and the race that created it.
Mikhail Nikolaevich Ermakov has come a long and difficult life path. At the age of nineteen, the student, the son of a worker, was sent on a Komsomol ticket to work in the Cheka. In one of the operations he was seriously wounded. And now, many years later, General Ermakov comes to Moscow and...
