Your mission is nothing less than to slay the Great Dragon. Keep in mind this is one of the strongest monsters in the game. On its first turn it will attack with Searing Breath; which can completely obliterate your entire party even with a high amount of resistances; however, the damage from it can be brought down to the single digits by equipping a Fire Charm, using a Runemaster's Fire Rune, and eating the Golden Egg found north of the Dragon's lair. Spoiler Warning: Plot details follow. Read at your own risk.