Taku is mildly annoyed, but I'd be too if a load of weird junk fell on top of me. True to form for an occult club, there are candles and a skull and a bat... and a bit of paperwork. The book's title is probably not very readable at this size - it says "Creatures and Tales of Northern Iridos."
Comic transcript
Kei quickly turns around as he hears the crash and spots Taku sitting on the floor with an annoyed expression, the box on his head.
Kei: "Taku!?"
Taku: "..."
Kei: "Umm... are you okay?"
Taku: "Yeah."
Kei kneels down to Taku while he takes the box off. There is something written on it.
Kei: "Occult Club? We have something like that?"
Taku: "Dunno. Never heard of it."
Kei: "Hey, could that be a photo of the club members over there?"