In all the years to come, Harry would swear up and down that he wasn't snooping. He wasn't trying to pry or find anything that was none of his business.
But of course he really was.
What other excuse would he have for asking Sirius if he could look through his old Hogwarts photo albums? What other reason would he be looking through Sirius's box of knick-knacks?
None. So Harry snooped. He wanted to find out whatever he could about not only the girl who was the love of his godfather's life, but also his mother's best friend.
Harry opened the first photo album. It had tons and tons of pictures of his Sirius with James, Remus, Peter, and Lily. None of them had the girl Sirius had described.
The next one was filled with pictures of other people in the corridors of Hogwarts. Random people. He recognized some of them, but others were strangers. Still none of them had the girl.
Harry didn't see any more photo albums, and was about to give up when another one fell from the closet and hit him in the head. He opened it, revealing a picture of Sirius and a short, dark haired girl on the first page. They were sitting on a bench at Hogwarts, talking. It looked like they didn't even know the picture was being taken.
The rest of the book was all pictures of her. Occasionally James, Lily, Remus, or Peter would appear, but it was mainly Alexa, or Sirius with Alexa.
He looked at one in particular. It appeared as if they were having some sort of argument.
Sirius looked hopeless as he said something to Alexa. She looked furious, and she yelled something. He yelled back at her, and she threw a pillow at him. Suddenly, she yelled something, then walked quickly up to him, wrapping her arms around his neck and pulling him down to her level, before kissing him.
"Lovely picture, isn't it?" Sirius's voice said from the doorway.