A red Drake, Ando-Anca, known to the Northrons as "Skell", resided at Mount Udûnanca on the northeastern side of the Withered Heath. His father was of the first brood of Glaurung, so he was extremely old and, aside from his older brother Scatha, the most powerful of the Cold-drakes of the Grey Mountains and the Cold Drake that killed Dain I and his son Fror. Ando-Anca was an aggressive but sleepy creature who, even when stirred, slept 95% of the time. When he was awake, he hunted Losrandír, but his favorite prey were Trolls (for he loved a good fight).