"I know. He lost it when you were killed," Harry said, although he wasn't sure if the you included both of them. Sirius seemed unhealthy attached to his father. "Sometimes after he escaped from Azkaban, he'd get confused and call me James. I don't think he really ever coped with that."
He grinned. "We can take pictures. I don't know how, but I'm sure there's a camera somewhere around here. You have to see the new Muggle cameras. They are amazing and so small, even if they don't move. You can even take pictures with your phone."
Harry sighed. "So... Sirius was in Azkaban for killing you. After you were killed, he figured out that Peter betrayed you and went after him. He never said anything in his defense, always said that it was his fault. Bloody idiot that he is. I met both him and Remus in my third year. Peter too for that matter. He was hiding as a rat. Dumbledore didn't want anyone to know where I was, so no one knew until I came to Hogwarts. Once I was here- things were interesting. There was always someone trying to kill me, every bloody year, but ... Snape helped. He tried to keep me safe. I know about you two being friends."