Valdis laughs, and shakes her head, but it's not a pleasant laugh, if anything it adds to that dangerous feeling Shen Qingqiu is sensing.

"You see, I don't believe you. I believe you think you are being truthful, but even you can't explain why you can speak and write the same language found within the book belonging to that very cult. I think someone messed with your head."

There is a way to check, to force the issue, maybe she's even angry enough to try, but such things shouldn't be done in anger, and Shen wouldn't understand the purpose of it. Indeed, no one even knows she can do such a thing, so perhaps now is not the time to play that card. Elias isn't currently a threat.