"They said... when a living being... enters, to seek out our secrets..." She stops speaking, seeming to realize she's said something wrong. "...I don't know. They mentioned... that, and that it will only stop... for blood."

While that Chizuru is speaking, the other Chizuru is still frantically searching around for some kind of key, or another weapon, or - anything, really. But she's still coming up empty-handed and her head is pounding. She has to stop her search to move her hand to her temple.

"Saitou...?" She sounds frightened. "Please don't get hurt..."

It isn't quite there yet, but looking at the entrance, Saitou will see a shadowed figure slowly approaching as the scraping noise grows louder still.