Kinda of a part two to this I think The Fire King once he escapes will start the volcano event. here's the story line which i think took place. The Ice king entrapped the The Fire King then had the Fire King's volcano base buried under loot lake so no one would later remember who the Fire King was. Because of what ever happened between them which ill get back to later. Once the Fire King escapes he will destroy polar peek as revenge and bring his volcano base back probably as the new polar peek. I also think the dragon eggs was once owned by the Fire King but the Ice King stole the eggs because they held power,value or something along the lines of that. And i think that when the eggs get close to the Fire King they'll probably hatch because they respond to the heat that the Fire King emits. That is what i think took place between the Ice and Fire King.