The dragons of the north are spoken of in fear and reverence by the Men of Midworld, but the true nature of such beings has receded into legend. The gods Asag and Pharkun are interpreted after the image of such creatures, which are said to be immense flying serpents composed of elemental flame.
Only the first of the Lords of Men have direct experience with the dragons of the north, for they were the ones to bind them in the Northern Wastes. Scholars in the Library of Ambion believe the dragons were a type of Rasa that roamed the earth long before the Yevim, and that they remain imprisoned somehow in that frigid landscape.