Dragonreborn sez:
"In the mountains of deepest Frostfall, lives an ancient being. Ezarioth tires of the unending darkness and perpetual cold, and he lusts for the warms and light of Tropix. He lurks in his mountain capital of Darkveil, building his army so that one day, he may finally have the realm he so wants. He has already made one attempt at a coup, and near defeated the free peoples of [insert world name here], but it has long faded into myth and obscurity. Now, the people of Tropix, and those of Frostfall who do not fall under the dominion of Ezarioth do not know of the dangers that lurk within the heart of the dark side of the planet."