All children love adventure. And adults are children who have simply forgotten how to look at the world through the eyes of a child. This is a story about a boy Zhenya and his metal friend, their unusual adventures in the wonderful world of children's and not so children's fantasies. Together with the heroes of the book, we will be transported to a place where you can again slide down a high hill directly face-first into a snowdrift, dream about the stars, find yourself in a mysterious cave, a mysterious forest, or even at a hockey match. And solving the main mystery of this story will help us plunge into childhood and become closer to our children.