Tamsin Weasley is the oldest Weasley sibling. Shortly after graduating from Hogwarts Tam takes a job as the school's Astronomy professor. She thought life with her siblings was stressful enough but it only gets worse when her youngest brother Ron befriends the famous Harry Potter. Tam always seems to be getting involved in Harry's struggles along with her siblings. Her world revolves around her family and students until Remus Lupin comes into her life.