About the book: year / I have a friend - senior lieutenant of the Air Force reserve Evgen. I turned to him for help in order to more or less truthfully describe the fight between Erlang and the dragons. Evgen is a responsive and humorous friend. “Come on,” he says, “I’ll write to you myself.” “Come on,” I say. And this is what came of it. That's funny! So it’s not mine, but Evgena’s!!