Xibalba
Also known as the home of the Lords of the Outer Dark. Xibalba is described in the Popol Vuh as a court below the surface of the Earth associated with death and with twelve gods or powerful rulers known as the Lords of Xibalba. In fact there are three major portals to Xibalba, the first in Guatemala, in the vicinity of Coban. There is a second is found in Belize in the cave complex below that country. The third is found under St. Louis in the United States.
In all cases the portals open into a smokey, cloudy Mayan city in the Umbra. The city is mostly empty, but in the large pyramid structures are hideous monsters that hold over from the beliefs of the Mayan people. Some of them are still intelligent, most fully the Death Gods who rule there. Their lesser beasts who at one time were cognizant due to the worship and fear their many followers generated have fallen back to little more than ravenous monsters with the lack of worship. Gold and magical relics litter the temples here, but the chances of meeting the beasts that guard this hell are huge, and the likelihood of leaving intact without the protection of the Death Gods is slim. Though a couple of explorers have gotten in and out without being caught...
Xibalba was a large place and a number of individual structures or locations within Xibalba are described or mentioned in the Popol Vuh. Chief among these was the council place of the Lords, the five or six houses that served as the first tests of Xibalba, and the Xibalban ballcourt. Also mentioned are the homes of the Lords, gardens, and other structures indicating that Xibalba was at least a great city.
Xibalba seemed to be rife with tests, trials, and traps for anyone who came into the city. Even the roads to Xibalba were filled with obstacles: first a river filled with scorpions, a river filled with blood, and then a river filled with pus. Beyond these was a crossroads where travelers had to choose from among four roads that spoke in an attempt to confuse and beguile. Upon passing these obstacles, one would come upon the Xibalba council place, where it was expected visitors would greet the seated Lords. Realistic mannequins were seated near the Lords to confuse and humiliate people who greeted them, and the confused would then be invited to sit upon a bench, which was actually a hot cooking surface. The Lords of Xibalba would entertain themselves by humiliating people in this fashion before sending them into one of Xibalba's deadly tests.
The city was home to at least six deadly houses filled with trials for visitors. The first was Dark House, a house that was completely dark inside. The second was Rattling House or Cold House, full of bone-chilling cold and rattling hail. The third was Jaguar House, filled with hungry jaguars. The fourth was Bat House, filled with dangerous shrieking bats, and the fifth was Razor House, filled with blades and razors that moved about of their own accord. In another part of the Popol Vuh, a sixth test, Hot House, filled with fires and heat, is identified. The purpose of these tests was to either kill or humiliate people placed into them if they could not outwit the test
The first among the Maya Death Gods ruling Xibalba were Hun-Came ("One Death") and Vucub-Came ("Seven Death"), though Hun-Came is the senior of the two.
The remaining ten Lords are often referred to as demons and are given commission and domain over various forms of human suffering: to cause sickness, starvation, fear, destitution, pain, and ultimately death. These Lords all work in pairs: Xiquiripat ("Flying Scab") and Cuchumaquic ("Gathered Blood"), who sicken people's blood; Ahalpuh ("Pus Demon") and Ahalgana ("Jaundice Demon"), who cause people's bodies to swell up; Chamiabac ("Bone Staff") and Chamiaholom ("Skull Staff"), who turn dead bodies into skeletons; Ahalmez ("Sweepings Demon") and Ahaltocob ("Stabbing Demon"), who hide in the unswept areas of people's houses and stab them to death; and Xic ("Wing") and Patan ("Packstrap"), who cause people to die coughing up blood while out walking on a road. The remaining residents of Xibalba are thought to have fallen under the dominion of one of these Lords, going about the face of the Earth to carry out their listed duties.