If Athena was anyone else, her hand would have gone to Triton's face, to attempt to smooth out the pain that she saw creased there as a result of his brief smile. But she was not given to such open displays of affection, nor was she the nurturing kind.
So instead she simply changed the subject to focus more on this new factor in her foster-father's life. "And how long has she been staying with you? Not since that night, surely?"