Dear Merlin, those dudes in the cloak first off reminded him of Demetors, it was kind of gross and he wasn't all that happy about the situation. He was rather intimidated by them, and they were ruining the school vibe quite frankly.

But doing his best to ignore them, he turned back toward the Professor. "I think it's called lithomancy." Blake said thinking about things he had read in the past. "Though, I have no idea how to actually do it."