The Final Solution

After generations of heavy losses, both the Hylden and the Ancients turned to drastic methods to finally end the war.

The Hylden had discovered a great and ancient creature slumbering deep beneath the earth. Their research showed that the creature, which they called the Mass, contained unfathomed psychic power. But the Mass was not an intelligent entity and it lacked any ability to direct its latent power. The Hylden resolved to weaponize this creature by constructing a massive device, itself fueled by draining the lifeforce of a captured Ancient, that could forcibly harness the mental energies of the Mass. They would use this weapon to eradicate all non-Hylden life in the world, ridding the land of the Ancients' religious doctrine and ending the war at last.

But this goal was never realized. The Ancients had a plan of their own. If they could not defeat the Hylden, they would banish them from the world. Making use of their notable magical knowledge and ability, a group of Ancient sorcerers tore open a portal into another realm, a dimension of chaotic storms and demon creatures, and cast the Hylden into it. After untold casualties, the war ended with the banishment of the Hylden infidels.