When his baby sister is stolen by Fairies and replaced with a changeling， John Nesbit travels into the world of the Strangers in order to rescue her and confronts such unusual creatures as human-headed flying dogs and a hollow man.，Young John Nesbit enters the world of the Strangers in order to rescue his baby sister whom the fairies have replaced with a Changeling.，When his baby sister is stolen by fairies and replaced with a changeling， John Nesbit travels into the world of the strangers in order to rescue her and confronts such unusual creatures as human-headed flying dogs and a hollow man