The invasion has begun. No one can be trusted. Loved ones can kill; relatives can betray. Most people have changed under the action of biotin. Now, besides their deceptive appearance, these creatures have nothing in common with people. The survivors barely hold their positions in the new capital of Russia—St. Petersburg. But there is still hope to set everything right. To win, you must tame the Sector. Time is running out. There are only twenty-four hours left. And if you’re late—changing anything will be too late!