These two call her differently. In English it is Moon. In Russian she is Luna. In an almost forgotten common language, many years ago, her name was Loya. Natural satellite of the planet. An eternal, familiar attribute of the night sky. What if this natural satellite is not a simple stone ball, but...? If such a thing could even occur to anyone, it would not be these two. He is an ordinary young man from a completely provincial American town. She is a simple Leningrad girl finishing school to the menacing accompaniment of an air raid siren, the ringing of fire bells and the roar of explosions. No time for crazy fantasies. There is another world war going on. As always, bloody and senseless. And in this whirlwind, he must find her. In the meantime, those who are next to him do not even suspect that in his shoulder bag this young man has the most terrible weapon and the most desirable thing on the planet. Only after becoming acquainted with its contents does the young man understand what a grandiose secret he is faced with.