Excerpt from "A Dissertation on the Realms," by H.R.M. Thansor.

Chapter 9, introduction.
"There is some debate over whether or not Firengot should be labeled as the fourth or fifth realm. Unlike Darsendor and Torsorn, Firengot does not come into alignment with Calsin over the course of time. Rather, it can always be accessed so long as one has a bloodstone with which to perform the portal spell. Conversely, the fifth realm (Nisentil) is time-locked like the previous two. However, after careful study, it is my personal opinion that obtaining a bloodstone is easier than waiting the appropriate amount of time for Nisentil to come into alignment, and thus, I will classify it as the fourth.

As aforementioned, entering Firengot requires a bloodstone. What makes this particularly challenging is that bloodstone can only be found naturally in Firengot itself. Thus, when entering the realm, bringing back ample bloodstone for future journeys is essential. However, even if you have the appropriate materials, entering Firengot with fewer than a dozen trained warriors (be they wizards or soldiers) is not advisable.

Unlike other realms, which often have set entry points, Firengot seems to be locked with Calsin. It is as if the two lands simply exist on top of each other, though, since much of Firengot is covered in fields of lava, it is advisable to consult with official maps of the land before attempting a portal spell. Once there, you will assuredly be faced with creatures more hostile than any that exist on Calsin (which will be explored in more detail in the next chapter). Fire-spiders, lavawalkers, and even plants that can spray magma are among the lesser dangers you will come across. Unlike the second realm, Firengot has a wide array of plants and animals, forests as expansive as the jungle of Sournous, but nearly all of it is deadly to the life of Calsin.

The only way to safely explore the realm is under the protection of the Dark Lord, who makes his home there. Believed to be the creator of the orcs, Nubierd, this being will usually only grant his blessings to those who have slain legions in battle. This blessing is usually offered in the form of a black bloodstone, which will usually appear near the individual while they sleep. Upon transporting to the realm, the Dark Lord will usually transport the individual to his palace, a location never yet found by simply exploring the land. The being himself is described as appearing very similar to a firingar, an enormous, towering figure made of lava. The perfect ruler, in a way, for this wasted, fiery landscape."