I finish up with these books, let's sneak out of a second.
I open a portal to the underground market, I mean that quite literally. It is on the 4th layer of hell.
I shop around for a while, I'll take a bronze dagger (dipped in the blood of its victim it may sirens and some creatures like them), a silver dagger (werewolves duh), a cold iron dagger (fey, ghosts, demons and some deamons), a bag of salts blessed with unholy magics and a sun-stone.
Expensive shopping list but you can easily afford such things when your dad is the king of the 8th layer.

Portal back and I find myself in the hall when I see one of the girls from my class walking around looking absentmindedly at a piece of paper in her hand.
I sneak up on her and look over he shoulder to read the piece of paper.
[i]Et lupus canini lamia figura, vates sanguis acetabulis[/i]
Don't understand a word of that, looks like latin.

"Are we preparing an exorcism lovely?"