Harry wasn't used to seeing Remus visibly shaken. It wasn't that he hadn't seen him emotional. After all, he had helped to raise him. He spent countless summers and holidays with them. And then he spent ten months a year with him once Harry turned up for school. He just rarely saw Remus so upset about something like this.

For a moment he really wished he'd gone to get Sirius before coming in. Sirius was a pro at handling nightmares after all. But his instinct had been to rush into the room the moment he heard the scream. Gryffindors were always impulsive that way were they not?

He reached out and gently touched Remus's shoulder, squeezing it lightly the way he had done to Harry so many times over the years. "Do you wish to talk about it? Sometimes it helps." He paused, and then decided to be completely honest. "And sometimes it's easiest to not have to speak of it. I don't wish to push of course, but I'm a good listener if you want to talk."