Under strange and mysterious circumstances, a cosmic visitor named Gianeia appeared on Earth—a resident of another, unknown planet.
The people of the communist society accepted her as a friend, but for a long time her behavior remained unclear and even hostile. The guest was surrounded by mystery.
A fantastic novel by Georgy Martynov explains how this mystery was revealed, how Gianeia changed her attitude toward the people of Earth, and speaks about the power of humanism and the might of reason. In its second edition, the author significantly revised and expanded it.