Convolutions Of "Peter Pan"

Peter Pan first appeared in a section of The Little White Bird, a 1902 novel written by J.M Barrie for adults.

The character's best-known adventure first appeared on 27 December 1904, in the form of a stage play entitled Peter Pan, or The Boy Who Wouldn't Grow Up. The play was adapted and expanded somewhat as a novel, published in 1911 as Peter and Wendy.

Following the success of the 1904 play, Barrie's publishers, Hodder and Stoughton, extracted chapters 13–18 of The Little White Bird and republished them in 1906 under the title Peter Pan in Kensington Gardens, with the addition of illustrations by Arthur Rackham.

--lifted bodily from Wikipedia.

So, section of a novel, play, novelized play, then book made from the sections of the first novel.