It is a classic children's SF novel in the manner of Verne's Mysterious Island, a little compositionally disorganized, full of slogans, but readable...
In search of new stories, Peter Pan, a boy who did not want to grow up, is left without his own shadow in the house of Mr. and Mrs. Darling. One evening, when he tried to find her, he met their children: Wendy, John and Michael.