As children, we all dreamed of different miracles. So that one day in our lives something like this would suddenly happen, like in a fairy tale. For example, I wish I could find a magic wand like Dunno. Or get magic shoes like Ellie in Fairyland. Or find a jug of gin, like Volka from the fairy tale about old man Hottabych. Well, or at least never learn lessons, but always know everything, like Alyosha from the fairy tale about the Black Hen. But all these were just dreams. And suddenly the ordinary boy Maksimka finds an extraordinary cap. Which makes him invisible. And modern children suddenly understand that magic is not so simple...