Loving a Cursed Heart

Arthur and Lukas made a terrible mistake that left them both cursed- one with a heart of fire and the other a heart of ice. One searches for a cure while the other crumbles and succumbs to another curse that is much harder to break. Can it be broken? (Bad Summary) Rated for minor violence and some swears. Eventual Dennor and USUK. Dragon!England and Magic!Norway. -BEING EDITED-