After meeting Nym, he asks you if you are allied with Tharn or Asuul, to which you answer neither. He bestows upon you the Star Coif, and will give you advice on defeating the Umbra'Keth provided you have all the star teeth.
"I have waited long, but perhaps you are not who I wait for. Perhaps you are just a morsel of warmth."
Who are you waiting for?"Ah perhaps I AM waiting for you. Let me peer at you and see if you server wither enemy, Tharn or Asuul."
I serve neither."Incredible! You are truly a hero for the tales. You have deprived my enemies of all the known keys. Perhaps then you will stop their perversion of shadow magics. I shall help you in my small way. Here." [hands you the Star Coif] "The Chieftain kept a Star Tooth in the chest near him. If you have all seven now, then you are ready to challenge the last corruption of shadow, the Umbra'Keth in the Crypt of Hearts."
I have seven.[he nods] "They are fire gods, fire gods from the night sky. You haven't lived until you have chased them... Clouds beneath your feet, wind to your back, crew racing the rigging as you pursue that brilliant flare descending toward the horizon." [he shakes his head] "But the fire is yours now. I am proud it is with someone so worthy. I will be content with the decks of my ship now."