Isabella Snape REWRITE

When the Cullen's leave Bella after the James incident, leaving her mind broken. Bella leaves the dull monotony of Forks and goes back to the Wizarding world where a storm is brewing, back to her brother, the most hated professor in Hogwarts, to take up the DADA position where she will connect with a godson who never knew her, and a possible love interest she never realised.