On September 25, "World of Warcraft: Wrath of the Lich King" released its latest promotional video, "The Battle of the Wrathgate," allowing players to witness an unexpected interlude during the thrilling confrontation between the Alliance humans and the Horde as they join forces against the Lich King Arthas. Under the siege of the formidable Scourge army, the elites of the Alliance and the Horde fall one after another. So, what exactly happened in the end? Who is the mysterious figure capable of making the Lich King Arthas retreat at the end of the video? And is the red dragon that eventually comes to rescue friend or foe?