On the other hand, giant Andy didn't so much mind the running because his steps were already longer than most, so he figured it was probably less effort for him to go the same distance than it would be for someone short. He wasn't completely sold on that theory, but it at least seemed feasible. "True," he agreed, following Stephen.
As Andy had no idea where the passage went, he could only assume it would take him away from the library. He realised he wasn't that upset by it, but then he'd only been headed there to get out of the common room. When Stephen stopped walking, Andy did, too.
It seemed a little silly, the two of them standing around in the dark in silence. However, it was keeping them dry and out of Peeves's way. Andy's eyes were growing accustomed to the dark, so it was a little easier to see. When Stephen mouthed the sorry to Andy, he smiled and shook his head. 'It's fine,' he mouthed back.