According to the annals of the Mage Mainland, the Zhentarim Association controlled thirty-one regions. The smallest region covered seven to eight hundred thousand square kilometers, while the largest occupied more than a million square kilometers. It was a boundless area rich in resources. These areas contained 60% of the entire Mage Mainland's population.
Leon's mission site was located in the Kerala mountain range, northeast of the Dagon region.
After discovering an entrance to the Underground, the Zhentarim Association had constructed an Mage Tower nearby, and sent a powerful Second Grade Mage to guard it. Ninth Grade was the highest rank in the Mage hierarchy, so a Second Grade Mage sounded like a weak entity, hardly capable of shouldering such an important task, but, as a matter of fact, within the Mage Mainland, which was the source of most of the Mage population, the highest grade Mage one could get in touch with, or even hear about, was a Fourth Grade Mage.
