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Appearance and Personality
Tinker Bell is mentioned in Beyond the Kingdoms but is never seen. In the original story, Peter flies to London to retrieve his shadow at the Darlings. In Beyond the Kingdoms, he is also looking for Tinker Bell. She is used as bait by Captain Hook and the Masked Man to capture Peter. Alex and Conner see through their plan and promise to help save Tinker Bell if Peter helps them fight the Masked Man. 
The only thing known about her appearance is that she is small, and a pixie.