Each of us in childhood wondered what if?.. What if Aladdin's lamp falls into our hands? What to do when you come face to face with an alien? What to choose when you are offered to fulfill three wishes? Could the Gray Wolf, who spends most of his life in human form, think that the battle with evil spirits for the color of ferns would result in eternal imprisonment in wolf skin for him? And that he will find help in the remote Siberian taiga, where for many millennia an interstellar ship alien to everything on earth has been lurking.