Over a century has passed since the Great War with the Fire Nation ended, but the world has long been without peace and without hope.
A vicious plague swept over the land almost sixty years ago, wiping out towns, small cities, and sending the governments of each nation into a state of paranoia and panic. Hundreds of thousands are dead, and the Avatar himself lays among the corpses. The dream of rebuilding, of prosperity that should have followed the end of the war vanished in place of fear, darkness and death.
Finally, a mere five years ago, a sliver of salvation emerged. Members of the Northern Water Tribe created a medicine effective against the illness, and using a diminished form of Bloodbending, were able to disperse the medicine quickly enough to save those in even the latest stages of the disease. Since then, healers have begun to leave the Water Tribe to travel to the other nations, saving who they can while thousands more flock to the poles to heal their sick. For the first time in half a century, more people are beginning to survive than die.
But as the light of hope rekindles, the shadows grow. Balance between the human and spirit worlds shattered as the anger and pain of dozens of dead Avatars corrupts the Spirit World. Spirits are falling prey to madness and despair and escaping into the human world, killing and spreading the taint into the very Earth.
Darkness threatens to consume the world, a darkness only the Avatar can stop....
