The choices we make or the path's we take

Harry has an older sister he didn't know about who is about five years older than him. She is a shy, socially awkward girl who is fascinated by magical beasts and is the rare kind of girl who can see the good in everyone even when they can't see it themselves. She gets a time turner from a mystery person on day but it's no ordinary time turner. No this one can send you way back into the past and in fact isn't a time turner at all but instead is a destiny turner, in which it will transport the user of this device to where they are meant to be in life and to their true destiny wherever that may be. Harry's sister Ella at age 11 gets sent to the past where she meets a young newt Scamander at Hogwarts and they form a fast friendship.
Ella must now grow in in the early 1900's with only a select few knowing who she truly is and where she comes from. But evil is rising and Ella and Newt's bond will be tested.