Olympia, The Half-Blood Princess

This fic is the first in a series of seven books which I plan to write. These fanfics will be based on Harry's life at Hogwarts, however through the eyes of Sirius Black's daughter: Olympia. Olympia has been brought up by a foster wizarding family, however she knows nothing about magic, or even anything about her parents. Will she forgive Sirius for leaving her? Rated T to be safe.