Call of Heimdall

Battle raged for eons on the branches of Yiddrisil. The Norns had made a prophecy that would be fulfilled. A blacked sky cracked open to the light beyond. Heimdall's hands shake before the call sounds deep and long. The horn of doom echoes through the worlds. A abomination of fate that was folded safe is now unfurled. Every branch quivers as the snow falls. Crops die and ruin takes us all. Starve in the cold of a hundred years. The frozen weeping countless tears. Roar a welcome as Ragnarok comes The anguish of a final song is sung A cursed wolf and serpent rise The sacred heroes fight and die. The world tree burned by the flame of war. The worlds buckle as survivors mourn. Why did Yimir ever fall? Just make Midgard's crumbling walls? His spine the mountains and blood the seas Slain by the brothers three. Now to destroy it all. Why did the Norns plan the call of Heimdall?