Izzy never got into conflicts. She was always the one who resolved them, and came out for the better, even if she wasn't originally involved in them. So, what happens when she is thrown into an entirely new world, that seems to be an epic battle between "light" and "dark"? ischyrós oudéteros tha (strong neutral will) Also note that her name is pronounced the same as "Ithica".
A muggle-born student that finds her home in Hogwarts, but in her third year quickly finds out that it is not what she thinks. Between the Boy Who Lived disappeared and Snape running the school, it is quickly found out that she is a muggle-born, and it isn't well received.