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According to the beliefs of the people of Skellige, Ragh nar Roog is the final battle of the forces of good and evil, which precedes Tedd Deireádh — the end of the world. A spectral army will arrive from Mörhogg, the land of chaos, on a demonic vessel named the Naglfar to wage this battle. Islanders believe that the magical golden rooster, Kambi will awaken the mythical hero, Hemdall to answer the call of battle.