Does much depend on intelligence? And from counterintelligence? Could a secret duel between intelligence agencies radically change the course of the war? The head of Earth's military intelligence, Pavel Preobrazhensky, and his opponents from the Geheimestaatspolizei (in Russian, the Gestapo) will have to find answers to these questions on board the distant space city of Eisen. It just so happened that the main tasks for both sides were simultaneously the introduction of their agent and the neutralization of the enemy spy. And the Great Game began, the bet in which is victory in the space war...