It took many years for another great civilization to arise. This time it was a dwarven kingdom named Khuzdul. It was a huge underground empire connected to an underground root city of elves. Its place was in the midst of the continent inhabited by humans, Fal’og. A great underground tunnel system called the Loway allowed fast travel from one Khuzdul city to another. The greatest of these cities was Khaza-dul, gem of the heart. Its magnificence was unrivaled.
Note that Dlan is now being built on the ruins of Khaza-dul.