The Faerie's Gambit

Faeries exist. They replace children with their own and keep the human babies for themselves.
One girl (Felicity) is somehow left behind, raised with her changeling (Siofra), who she views as her sister. Changelings see the world differently than humans, and so are fully matured, and think like adults. Sia half-adopts the human girl, so their relationship is like older sister and younger instead of twins. The girl's parents believe that there is only one of them, and so does everyone else. Two hunters go after them, believing that there is only the changeling.

Note: This story is intended as a one-shot, though we may add more if people are interested.

Co-writers:
- @suri_x_21
- @deadbeatvdknt