Porthos may not see the truth of the matter, but Athos does not have half as many doubts. He knows all too well what Porthos is capable of, no matter the form. In fact, it begins quickly, given how off guard Athos has been when Porthos comes charging at him, stumbling back and falling to the ground hard, wincing as he shifts.

"You see?" True, that had mainly been surprise, but it had still caught him off his guard.