Lost Girl

Many years ago, a young girl called Kat was made an orphan. Soon she was thrown into the dangers of living on the streets of London. She was trying to find food when it happened. She was attacked in the street, and would have died had it not been for a certain boy who came to her rescue. Together Kat and the boy forged a deep friendship, and were accepted into a home together. But then one night, a shadow snuck into their home and stole Kat and the boy away from their new life into one of adventure and horror.
Now, after many years of being separated, the boy, who had escaped, went back on a search for Kat. But will she be the same as he remembers her? Or will she have fallen prey to the charm of a certain immortal boy named Pan...

Rated Mature for minor swearing, some scenes of violence, and some mature content

I do not own any of the characters from Once Upon A Time, but Katharine is my character so please leave her be