Water. Earth. Fire. Air. Long ago, the four nations lived together in harmony. But always, there were threats to the peace. The Great Sages say that only the Avatar, master of all four elements, could keep the world in balance. But in the fourteenth year of the Era of Kyoshi, the new Avatar was yet to be found.
In Ba Sing Se, the health of the Earth King, much like that of the nation he ruled, was in steep decline. His descendants fought a bitter battle for succession, each wishing to be the next to sit upon the ancient throne. But this was not a battle fought by armies on the field, but one waged by assassins in the gilded palaces of the eternal city. Trained killers, experts in the art of poisons and hidden blades, flocked to the employ of these ambitious princes. This is the tale of this hidden conflict, known today as the War of Secrets and Daggers.