Sirius had escaped. She escaped with Harry after seeing the bodies of her husband and their friend. She escaped Dumbledore who was trying to take her son. She escaped an attack from Peter Pettigrew. She escaped because of the Barty look-a-like with the two hearts-the Barty Jr. look-a-like that was sent to save her and help her save others. The Doctor x fem!Sirius x James Potter (I don't own Harry Potter or Doctor Who)