The Great Veil

The Great Veil is a magcal barrier located in the Sea of Mists between Caemuth and Larthorn, dividing the Realm of Men and the Realm of Elves.

Created shortly after the alliance of men and Dragons won the War Against the Elves, by something something.

Breached for the first time in 748, it was followed by a large scale invasion into Caemuth, which is known as the Grand Calamity.