He has some waiting to do. Whether she's watching him, stalking him in turn, or whether she simply hasn't noticed him yet is impossible to say in the stillness of the air around him. Distant screaming speaks of others having a much less peaceful time of it.

There is not really a moment in which she arrives, per se, no feet landing on the ground, not even really the sound of a shift in the air. It's simply that for a while he is alone, and then he will realize that he is alone no longer. She wants him to notice; she's appeared in what would be his line of sight if he had such a thing. She's watching for a flinch, a start, a spark of fear; should she see one she will draw in a sharp, pleased breath and charge.