Vulcan's Forge
From Stormhalter
Vulcan, a blacksmith of great renown, moved up to this level with his daughter, Alia, to get away from the crowds of the city. If you can find the obsidian egg and take it to him, he will craft for you an Axe-Glacier of great quality, which will return to the hand that threw it. Beware of Alia, though, for she, too, covets the Egg, and would steal it if she could. The entrance to Vulcan's forge is hidden behind a rock wall, and the teleport mechanism requires the use of a moonstone ring, and can only be activated at night.