Defeat Sire Denathrius.
Once more unto the fangs of death himself, sword drawn, peace with oblivion made. Let us meet death together and bring him low. Be sure you are prepared for a sustained assault. For once we reveal ourselves, there will be no stopping. When you are ready, direct the Focal Mirror at the gates of Castle Nathria. Let us descend upon our burning enemies with ferocity and swiftness of action.