Karst nodded briskly, once to Marona as an affirmative reply, once more to the woman called Yoruichi (which was certainly an... interesting... name) as a greeting.

"If you don't mind." It was more a statement than a question-- there would be plenty a problem if Yoruichi did mind.

The journal was an interesting new toy, to be sure, but Karst put it away now, sensing that now was not the time. There were conversations to be listened to and participated in, there was a ghost to find, and the white monsters could come back at any time, which would mean a fight-- and she hadn't seen a weapon on Yoruichi's person, so she was unsure whether or not the woman would be capable in a fight.

Yes. It was best to be wary of all options.