Wardens of Iriolan
The Planar monsters of legend. An ultimate, world ending, malevolent force, ruled over Iriolan for hundreds of thousands of years. They came from a different plane, after some great cataclysm in the Old World. They fought a war with the people that lived then, and destroyed everything they’d built. For hundreds of thousands of years, they were the rulers of The World, Iriolan and beyond.
After the Great Crisis, their society fell. Many ran to hide in the great caves, the deepest and darkest recesses of our world where not even Dwarves dare to go.
None have been seen for several ages, and they’ve fallen out of much memory, but the legends still exist, passing from mouth to mouth, with the warning of great omens coming before them, and the destruction in their wake.
Now, they’re back.