The question gets no response - there is no shift in tension that indicates she's ignoring it, she just doesn't seem to register anything at all until her hands unclench just enough that she can release the enchantment on the mirrors--

--at which point she can see Clio behind her and doesn't quite actually swear, the word that half-happens more startled than malicious. “Jesus,” she says, after a pause, pressing the back of her thumb to her mouth, and it's clear at that point that she hadn't heard a thing.

“...hello.”