I'm running an experiment, and you're nosy. It's a given that you would try to find a way to watch somehow.

[She lets him go, however, trusting him to keep from biasing her test while she turns her attention to the rest of the room. Five hidden things, or six if you count the one she'd been given before. More likely than not he's lying, by giving her a concrete number to try to ferret out. She'll just have to be thorough, and focus on going through the room with a fine-toothed comb, rather than just trying to find the number he'd told her before concluding her work was done.

Carefully, she sets her own stone down near Kakyoin's feet — someplace where she can keep track of where it is, without risking overlap with another hidden one — and starts moving slowly through the room, looking for any sense of the same unsettling feeling she gets when Hierophant manifests and moves around.

Near a stack of books on one of the end tables, she slows. Something doesn't feel quite right...but is it psychosomatic, or the real thing? She moves a few steps away and back again — no, there's something, she decides. It feels that way.]

Near the stacked books on the table.