[HE KNEW THERE WAS A FUCKING SECRET PASSAGE IN THE READING ROOM. HE FUCKING KNEW IT. It's just begging for a locked room murder. Apparently he was right about the bar too but that clue isn't as obvious so he's going to save it for later. And he wasn't as convinced about that one. It just seemed as good a place as any. So at like...three in the morning on Monday night, when everyone should be asleep and not planning murders, he's checking out the reading room.]
[Specifically: all the bottoms of the bookshelves for anything that's been "knocked loose".]
reading room
[Specifically: all the bottoms of the bookshelves for anything that's been "knocked loose".]