[Her reaction -- especially noticeable when he's looking for a sigh of what might be bothering her -- worries him pretty much right away, but he doesn't get much of a chance to do anything but open his mouth before they're enveloped. That draws Art's attention away to look around them instead. He's not letting go of her hand, though, moving to shield her as if almost expecting an attack... but there is none.]
Vines? But where did they-- [Well, more importantly, he turns to her again.] Are you all right?