Opal is a hopeful dragon, who spends her time on the mountain peaks wishing that she could get even with the prince that lives there.
She does get that chance, when the prince falls sick and she pretends to be doctor, and feeds him all kinds of poison. The prince is soon dead, thanks to her. She realizes that she never really wanted to kill him. So she whips up the antidote.
The prince is saved, but he isn't to grateful. Opal locks him in the dungeon that he put her in. Then she happily throws away the key.
