D&D 3.0: Tales from Mystara
The City of New Grunland is located about 100 miles north of the City of Stars, a good twelve-day journey through twisting tunnels that connect the two caverns. New Grunland’s cavern is about half the size of the capital’s, but is considerably warmer.
The Grundlanders take advantage of this heat by growing and processing food, trading it with the other three cities of the shadow elves. A “Porador breakfast”—only a single mouthful—can last an elf all day long, because of the way it is compressed and preserved. Foodstuffs such as these are particularly useful for traveling through the caves; no one wants to be burdened with extra weight.