What happens if Harry can see traces of magic and realises that Sirius is an animagus. What happens when Harry recognises Sirius from an early memory. What happens when Sirius finds his godson running away from home, covered in bruises. What happens when it's revealed that Sirius didn't get a trial and that he's Harry's legal guardian. What happens when both Harry and Ginny need someone to talk to about the events of their past.