When Christopher reaches school age, he is sent back to England while his younger brother, Hugh, remains in Africa with their colonist parents. But Hugh's appearance in England to spend a vacation with his brother and, incidentally to get used to the idea of being separated from his mother and father, reunites the two boys in a summer of adventure and fantasy. Hugh is fearless. Christopher is older and somewhat more circumspect. But neither boy can resist the enchantment of his own imagination as they stumble into a magic place peopled by giants and dwarfs, by curiously human animals. Any rationalization of the boys' magic creatures does not rob them of their charm, nor will it diminish the delight of the reader, who from the very beginning of this charming story will be arrested by the comic-seriousness of these two unusual children and their quest for vivid experience.