High Realm

The High Realm, or the Sanguine Court, is the plane from which the hostile monsters of Karsen arose.

History
The war among the Unity was fought primarily between their creations as they weaponized the natural talents of the mortals. The Fae became horrific twisted beings who feasted on the lifeblood of living creatures to power their magic. Using their newfound blood magic, they drew an entirely new parallel plane into being, which they named the Sanguine Court and the drakes called the High Realm. Here they imprisoned their enemies and anyone unfortunate enough to catch their ire. They also created great war machines there, and carried out blood magic rituals using their prisoners to strengthen themselves. Those who entered were said to never return, save the faeries, and tales of the horrors inside began to leak out as the faeries traveled back and forth between planes. Living flesh fueled its existence, so it grew stronger as the war carried on and the Fae took more prisoners.

The Cataclysm eventually brought a violent end to the war, and in its last moments, it sealed off the Court from the depowered Fae. Countless faeries remained trapped along with their prisoners as a result, including the Sylph, the ruler of the faeries since life on Halse began.

Since then, no one has been able to access the High Realm. Until recently, it was thought to be permanently sealed. However, with the rise of Emperor Hovannes I of Halse, the barrier between it and the real world has started to deteriorate, and warped creatures from within are setting foot in Halse for the first time in ages.

Description
The High Realm looks like a parallel version of Halse. However, the land is a gray wasteland under a pure white sunless sky, covered in rivers of blood and the cherry blossom trees that faeries consider sacred. Time passes strangely there due to the ancient faeries' incomplete understanding of world creation, and distances seem to lengthen or shorten randomly while traveling.

Somewhere in the High Realm lies the Sanguine Court of the Fae, where the Sylph and their court rule over the cursed land for eternity.