[Ok, buddy. Touching your blood stained notebook was gross enough, touching your literal soul in key form is just... ugh. But aside from making a bit of a face, she doesn't actually say this because she realizes it makes her sound like a five year old.]

...Rose? [There, that's a polite inquiry. She shakes her head afterwards though.] I doubt i'd understand it even after someone explained magic to me. But let me ask you this: does dear Miss Zange need to be alive in order to complete the ritual?