Mio, my son.

Mio, My Son is a children's book by Swedish writer Astrid Lindgren. It was first published in 1954 in Sweden with the Swedish title Mio, min Mio (literally "Mio, my Mio"). The writing is stylised and the story strongly reminiscent of traditional fairy tales and folklore. It received a German Youth Literature Prize (Deutschen Jugendbuchpreis) in 1956. The book is 204 pages long.