We always knew that we were not alone in this world. But we rarely thought about how fragile the lines separating people from non-humans can be. From those who go hunting at night, who drink blood and for whom the value of human life is zero. It is from them that specialists in civilian clothes protect our cities and streets. They have armor-piercing weapons, science and magic, their own concept of duty and honor. They are called border guards. They shoot without warning.