Seclusion (Familia Ante Omnia - part one)

Reeling from his godfather's death, Harry Potter is withering away in Surrey. His friends believe him when he writes to tell them that he is fine—although, they should know better. Dumbledore finds an Auror with a sketchy background to take over the Defence classes, and the fact that she lacks the qualifications to teach and would rather cut off her wand hand than take the job doe