Two friends live in a taiga village. Leshka and Andrey. Friends have their own secret. In a secluded corner of the taiga, under the crown of a mighty oak tree, a real castle is being built. It was from this oak tree that the boys’ adventures began. And not only them. Quite by accident, Leshka discovered an invisible door in it. An unusual world awaited them outside the door. Two worlds came into contact: fairy-tale and real. Only in a fairy-tale world is life completely real, with its own laws and attitude towards life. A real pirate novel. The cunning and gullibility of some characters is simply amazing, this happens with people too. Truly fabulous islands in this world. Each island on the lake is unique. There is no rain, no winter, and everything is in bloom. Only in childhood can you find them. And heroes of the fairy-tale world for every taste: pirates, scouts, kings, shaman and others... The boys have to solve non-childish problems. This is how they grow up, when they can be responsible for someone... Good boys have a good kingdom.