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

Chapter 15, introduction.
"For many years, it was thought that the number of realms was capped at seven. The Fifth Realm, Nisentil, was discovered only seventy years ago, bringing the total up to eight, which sparked a vast new interest in the realms. Eager Realm Mages set out to make the next great discovery. And, after nearly two decades of work, the realm of Athiseron was discovered. Named after the mage who found it, it shares many characteristics with the Eighth Realm of Peris, in that it can only be gazed upon, not entered.

Athiseron us a realm that is not time-locked, meaning that it can be viewed at any time. The spell to do so is tricky, though, rendering it nearly impossible for anyone not a full-fledged wizard to cast. While I won't detail the spell, it involves an extraordinary amount of power, effectively forcing a window to open across the realms rather than utilizing a natural method of doing so. Additionally, the spell must be maintained, a task often requiring multiple wizards working together.

Once the window is open, though, it is easy to see into the strange land. Interestingly enough, it seems to be a land much like Calsin itself, with several castles visible from the Wizarding Academy. The difficulty of opening the portals makes it hard to map out the land, but successful openings in all the major countries confirm that it seems to be a thriving civilization. From the admittedly sparse information we can gather, it seems that there is no magic whatsoever in this land, as well as no large monsters and no extraordinary diversity in species (three distinct races have been observed, all of which look more or less like humans mixed with elves)."