With the defeat of the Kros fleet, the problems of the people on Earth did not end. While General Vershinin was busy defending the Solar System, the situation in the Gray Perimeter was changing rapidly. The system of Tinna’s star was attacked again by the fleet of Tanlans. The Betelgeuse corporation’s squadron couldn’t offer worthy resistance, and the Earth people lost the just-acquired opportunity to study the unique artifacts left at the site of that grand battle from a thousand years ago. In the face of an impending big war, the Empire doesn’t want to risk sending its ships into the space of the Gray Perimeter to protect Earth’s interests. The task of solving the new problem will again fall to General Vershinin.