What is the exposition of Peter Pan short story?

The exposition of "Peter Pan" introduces the Darling family, particularly siblings Wendy, John, and Michael, who live in London. They are visited by Peter Pan, a mischievous boy who can fly and never grows up. Peter invites them to join him in Neverland, a magical place filled with adventure, fairies, and pirates. This sets the stage for their journey and the central themes of childhood and the desire for freedom.