Is Mercy Really For The Weak? (supernatural/the vampire diaries)

Caden King, a well known supernatural hunter, one of the best. No one knows her by her first name, only her last. No supernatural creature has lived to tell what she looks like or the fact that she is a girl. She naturally has trust issues since she never really had anyone to trust aside from her brother, but because he went missing she never found anyone else worth trusting.
She went to every case she could get her hands on, earning a high reputation in the supernatural world. She never used her last name. knowing that it could mean her life on the line. Because no one or thing for that matter knew the "King" hunter's first name, it was perfectly safe to use.
She runs into the Winchesters when they run into each other during a hunt, both automatically trusting one another. The trio teams up together, demolishing whatever monster comes at them. The three best hunters teamed up, becoming unstoppable. Caden decides to pick up a case by herself going solo, animal attacks become sudden in a small town in Virginia, Mystic Falls.
As she digs into Mystic Fall's history she finds out that the animal attacks date back to the 1800's. Her horrid past finally catches up to her as she meets the most dangerous people, dangerous because she lets her guard down with them, she feels for more than just the Winchester's, one of the biggest mistakes she will make that will change her life forever.