SuSunuth was a young red dragon, just fledged at the end of the Age of Fire.
He was briefly met by RuGaard while captive by Imfamnia and Rayg into the Lavadome.
SuSunuth was exhibited as the projected future for all the survived dragons into the new rule of Rayg and Imfamia: his claws has been ripped, his wings damaged to render him unable to fly and he has been lobotomized, making him mentally crippled and docile.
Imfamnia explained to RuGaard how dragons would all be kept in such state: with the unique purpose to provide Dragon blood.