The Legendary 12
A vast plain of dry sand that stretches on for miles, far beyond the sight of humans. Many creatures find this a hospitable living environment, and so this Desert is far from lifeless. The Azerbad is home to at least one dwarven city, although its exact whereabouts is unknown to any but the southern dwarves. This land of heat is unforgiving, and average humans wondering its flat paths will soon find themselves dehydrated and suffering from heat flashes.
DC 25 History check will reveal more information.