Equestrian Roller Coaster Ride (Avengers Fanfic)

Did you know that Clint has a sister?

A sister that very few people knew that existed.

Being found as a child covered in blood with no one around...Tigari was confused about how she found the little circus as everyone slept. Clinton Barton was walking along the perimeter of the 'campsite' that the circus people had took at their own. The moon was bright and high in the sky with the stars out while he walked.
He was confused when he heard the crying of a child.
Walking towards the sound, Clint was surprised and very scared about finding a five year old girl covered in blood, in the tiger cage. So many questions ran through his mind but the main one was getting the child out of the cage without her getting hurt. Everyone else could come later once she was safe.

Even the tiger was protecting the young girl. Once the girl was out safely, everyone asked her questioned over and over. It was only when Clint was alone with her that she answered.
Her father was dead and her mother kidnapped. By who, she had no idea.
She did not have any other family that she knew of.

Her name was also...'Tigari'.

Clint had taken her in as his little sister. She only wanted to be around him. She only trusted him like she trusted her parents. Nothing would separate them.

What will happen when the Avengers and S.H.I.E.L.D need her help?

What will happen when the Avengers learn of Clint's sister?

What will happen when Clint finds out that his sister knows Tony Stark and James Rhodes?

Will she find her soulmate? Who will it be?

(I DO NOT OWN MARVEL OR ANYTHING ASSOCIATED! i ALSO DO NOT OWN THE PICTURES UNLESS TOLD SO!)