The Lost Boy (Peter Pan/Once Upon a time fanfic.)

Thalia Jones lost her mother a year after she was born, leaving her with her sea chasing father; Captain Hook. Knowing sailing the seven seas is not the life for a young girl, hook sends Thalia off to live with a Nanny until she is old enough to look after herself and make her own decisions. Now fourteen and a half Thalia decides that she wants to be a pirate just like her father, and so she does. She's not on the ship long before her father sends her on a mission to Neverland which she takes under the disguise of being an abandoned boy washed up on shore, but shes in for a lot more than she bargained for.