a.k.a. Glaurune the Merciless
Glaurune is an adult Red Dragon of some renown. Known also as Glaurune the Merciless, he would often lay waste to entire cities just to scare those nearby. His destruction went largely unchecked until the great Dwarven Hero Mexulhar confronted him in his own cave. The two fought viciously for almost two days straight. Finally, Mexulhar proved victorious in the end. Though he had won, he was not able to kill the Dragon for reasons unknown. Because of this he pledged that for as long as he lived he would stand guard at the mouth of Glaurune’s cave, preventing the Dragon from escaping to once again cause fear and destruction across the countryside.