Continuing to turn the cigarette pack, Olya draws slightly convex green letters with her fingernail. Opening the lid, he notices that, in addition to a single column of cigarettes, a disposable handkerchief is stuffed inside.

Taking it out with two fingers, Olga realizes that the handkerchief is wrapped around something flat and very light. In her palm is a five-centimeter blue transparent flash drive. Without hesitation, Olya plugs it into the socket of Lavrik's laptop and opens the screen.

Chudov, eight years ago

... It seems to Olya that Marina has fallen asleep. Finally, the narrow sickle of the moon has risen above the tops of the trees, and Olga...