Worldofwar.net theorizes who could be behind the Nightmare disturbing the Emerald Dream by connecting the dots off lore existent in the World of Warcraft quests since 2004 up to the recent release of World of Warcraft: Arthas by Christie Golden. Old gods? Deathwing? Ner'zhul? How do all this leads to the next World of Warcraft expansion and connect with the Cataclysm trademark? The truth might be shocking.