Like the other white dragons, Therragorn was created by the Dactyl by modifying the Queen Black Dragon's eggs. Although they were not bound by Jas' curse, the white dragons were deemed too weak and thus failures. Therefore, the Dragonkin abandoned them. In despair, she went to Shakorexis, the three-headed King Black Dragon, for help. He agreed to save her, bringing her to a secluded cave beneath old ruins in the north-east of the Wilderness, where she was sealed. Therragorn would remain there for several thousands of years.