Before Gul'dan's dramatic fall, two strangers arrived on Draenor: Garrosh Hellscream, the deposed warchief of the Horde, and Kairozdormu, a bronze dragon whose motivations were clouded in mystery. The newest World of Warcraft short story, "Hellscream," reveals how their actions on Draenor have placed all living beings on Azeroth in mortal peril.