I am quite good at Latin. Do you have a copy of this exorcism? And how do they reveal themselves? Do they look a tad different when they do so? They should not be harmed more than is necessary if they're only being inhabited by a demon.
It is that, yes. What do you know of my skills? But one cannot defend themselves if they do not quite know how the enemy they are facing works. Therefore I would need to learn how to fight them.