The prodigal sister returns

Bella Cullen nee swan was actually Isabella Potter. She was 10 mother her brothers senior, and as such was of age when Umbrage took over Hogwarts and Sirius was then killed. In a last ditch effort to save at least one Potter The head master sends her to live with a squib friend of his. There years later she is told that she can come home. The only problem is the secrets of who she is and the fact she had no idea what the war had cost her. One thing is for sure she will fight to be apart of what's left.