Drake Lair
From Stormhalter
Soon after the river was frozen, four of the nastiest, meanest, and most powerful of evil forces took control of the caves that used to serve as the source of river. They have killed many a valiant warrior, and the treasure that is to be found in their lair is not to be matched by any creature in the known lands. In the lowest section, easily reached from the waterfall lives Sparky, a powerful drake. His skin is silvery, and toughened by the cold so that only magical edged weapons that have can penetrate it. The charge of his breath is such that it can kill all but the most powerful in one breath, and those that do survive are stunned by the charge. Usually found with the drake (although it does tend to float around) is a presence of ice, that has developed immunity to any non-magical or blue-glowing weapon.