Background: The mainland of Azeroth, which experienced the invasion of natural disasters, was devastated, and the Fairwood forest became silent. The rotting corpse of the forest wanderer in Tirisfa who had already died but stood up again, the city of night was full of fog all day, the desert of Silesias was surging, the kingdom of Lordaeron was destroyed, Illidan betrayed the night elves and was exiled to Outland, and the former prince Arthas finally boarded the frozen throne and became the new Lich King of Northrend.