Ragnarök: The Twilight of the Gods

First comes the Fimbulwinter: three winters without an intervening summer, where snow drives from all quarters, biting winds whistle, and the sun offers no comfort. Brothers slay brothers for greed; oaths are snapped like dry twigs. On the high ramparts of Asgard, Heimdall raises the ancient horn Gjallarhorn and blows a blast that echoes throughout all nine realms of Yggdrasil.