Twilight: Hayley Swan < The Werewolf (Rewriting)
4 parts Ongoing Hayley Swan is Bella Swan twin sister. Some of Charlie ancestors were werewolves. So the werewolf gene was given to Hayley. She isn't a shapeshifter. She was wolf that could shift under a full moon.
After Bella had her heart broken by Edward Cullen, Charlie calls his daughter and asks for her to come home because Bella is depressed.
With Hayley back in the picture and everything that is going on in Bella world, let's see how it plays out for both Swan sisters.
New Moon- Breaking Dawn Part 2