After the Battle of Hogwarts, And what happened afterwards What happens if Sirius Black had a daughter, everyone knows her as Andromeda, after Sirius’ favourite cousin, who like himself was disowned from the family. She was a Gryffindor while at school and best friends with the Weasley Twins. Our story starts an hour before Lightning struck, at Weasley’s Wizarding Wheeze.All Rights Reserved