"...I think I know what it is," Nova said to both himself and Zaana as he somewhat hesitantly entered the gigantic ice serpent's mouth.  As he reached the back of Zaana's tongue, Nova finally saw Rex biting down on Zaana's tongue.  Nova facepalmed himself before he walked back out of Zaana's mouth, turning to face Zaana as he said, "Rex is biting the back of your tongue.  He must have been in there the entire time, even while you were sucking in massive amounts of water and digesting those whales."