Nalfagoer is the cursed dragon form of prince Nalthaniel Hewrot. Scarlet encounters him during the latter chapters of the first book, where he has been living alone, lost in the wilderness for several years. While the two do not have much in common, they form a strong bond.
Scarlet helps Nalfagoer escape the wilderness and brings him back to Arindell where his curse can be lifted. A major part of the second book centers around helping him cement the curse by walking home to Hewrot.