The voice brings a sigh of relief from the young woman. Not alone. That's good. And a friendly-looking, grandfather-y type? All the better. He's probably safe, she decides, and she answers with a nod that he probably can't see, although he'll definitely see the way the water moves around her as she starts to swim to shore. It's a little slow-going - she doesn't get to swim that often, after all - but she closes the space between them little by little.

Once she's close enough to recognize that the white garment on his shoulders is a lab coat, however, she hesitates, pausing in her approach and instead treading water closer to shore.

"Are you a scientist?" she asks, a small frown creasing her brows.