The character of Peter Pan was first developed by J.M. Barrie in his 1902 adult novel The Little White Bird. In this semi-autobiographical tale, the narrator tells his young ward David about a week-old infant named Peter who overhears his parents discussing their future hopes for his adult life. This all sounds rather dreadful to him, so Peter absconds to Kensington Gardens where he encounters the various fairy folk who make this London park their home. These few chapters in The Little White Bird inspired Barrie to write a full theatrical play entitled Peter Pan; or, the Boy Who Wouldn’t Grow Up in 1904. The chapters in Little White Bird were slightly rewritten and published as the book Peter Pan in Kensington Gardens in 1906.
Though published to capitalize on the success of the play, Peter Pan in Kensington Gardens is not a prequel to Peter Pan. Rather, it is a first draft of sorts. Barrie would revisit many of the themes and situations in that short story, not the least of which being the flying boy who refuses to grow up. Kensington Gardens would become Neverland, though Peter does allude to having spent some time in the Gardens when he first decided not to age. Maimie, the girl who develops an affection for Peter, becomes Wendy. Finally, in 1911, Barrie rewrote his play as a novel. Peter and Wendy became the definitive literary version of the story that has inspired countless adaptations on stage and screen since.