[Misery loves company, and booknerdery loves company, too. So this is just fine as a segue by him. Kadoc's been dwelling on the same question basically since he learned the forbidden section existed.]

It might be magic that's too dangerous to fall into just anyone's hands. I've been through a few of the group rituals here by now, and they can get intense. So it could be a matter of magecraft they don't want the audience at home to try, so to speak. . . . That's the answer that assumes they're being on the level with us, though.