It takes a second for him to answer the question, and when he does, it's just a low alarmed keening noise that drags on. That's it, this really is a hallucination, bad like all the others, this proves it, she's supposed to be okay, she's supposed to be alive somewhere and maybe curled up with furs and away where no one can hurt her, she was the only one to escape she's supposed to be okay-

Yeah the keening noise isn't stopping anytime soon, for however much it's getting ragged and rattly.