She wouldn't be surprised to hear him grinding his teeth the way tension sang around him like a plucked bowstring. But she's caught his attention fully now. She considers how to play this. And it is a game, somewhat.

She lifted a pale hand, indicating the general state of London. "The heat and humidity alone can press in on people." She really does not like heat. It's not in her nature to like heat. It drains her and her powers are only beginning to wax now that solstice has passed. "And some say the fair folk hunt at the end of July." She looked at him steadily, cool green-blue eyes watching his to see what he takes from her statement. "Or perhaps it is the coming full moon." She doesn't think he's a werewolf, he doesn't feel like wolf magic. But the Full Moon even effects humans. It changes magics as well, of course.