The boys' dorms [Open to Harry and James]
It was hard to spend a lot of time in the dorm. First it had been because of the other people occupying the room, people that Harry knew and loved, and lost. It was hard watching his father go about every day teenage things without a care in the world, not knowing that he wouldn't survive another decade. It was hard watching Sirius joke and laugh and act like a teenager, act like a person who knew nothing about the horrors of Azkaban. But now, now it was hard because of Lupin. Remus knew everything. He knew who Harry was, where he had come from, what was going on in the future. Hermione had ruined everything and so Harry needed to take some time to himself.

The dormitory was deserted when he made his way up the stairs to drop off his books. The lack of people tempted him into staying for a bit where he could just think. There was far too much to think about and not enough time. Actually, he corrected himself, he had all the time in the world. An extra twenty or so years at least.