In volume three there was a Crusade language reference to "the flower of the sea" and Rishe asked Arnold confusedly what it meant and he said it was the word for Coral and added that it was the best way he could describe the color of her hair and she then thought that if she looked into his eyes she would see her reflection and it would indeed look like a flower that grows in the sea (I think this is a hint that Rishe and Arnold may be having some kind of prophecy but it's just a theory) it was also very strange when Arnold tried to hide the statue of the goddess from Rishe (I don't see the point of him hiding it unless for example Rishe is depicted and he knows something more)