Well, of course he saw that one coming. He honestly should have given in at the start but no, he had to stand his ground. Like an idiot. He watched Sirius run and got up, hurrying after him with his bag and notepad, stopping to apologise for the noise because the librarian looked ready to hit them. He stumbled and struggled to catch up, having to move way faster than he wanted to.

By the time he caught up with Sirius, he was wheezing a little. Only a little.

"Friends don't make friends run a marathon through the school, just so you know." Catching up now, he slowed his pace and reached out for the history book, trying to snatch it back from him. "Oh how I wish you'd been hexed, you awkward git."