A story centered on a young schoolboy and his strange relationship with an extraterrestrial entity.

Matthew Gore has an imaginary friend. Or at least it seems. However, his friend is real, an alien called Chocky, who travels the universe using the minds of children, without the need of a starship. Matthews' parents, worried by their son, try to discover what has happened, because they don't understand the prodigious intelligence and knowledge that Matthew has suddenly acquired.—Chockys