Was the library fun? Sirius somehow highly doubted that. He had a library at home. It was no fun. Dangerous, but not in a funny way. Dangerous and boring, the worst combination. But still, he didn't want to be mean to his friend, so he smiled. "Let's meet up and then decide what to do! I wanna explore everything. I bet there's loads of hidden stuff, you know? There is in my house and this is even bigger and older."

So it stood to reason.