After his violent defeat, the former tyrant King Sombra has managed to claw his way back from the land of the dead and has returned to Equestria to seek revenge on Princess Celestia and the Elements of Harmony. However, the Emperor of Darkness is no fool. He knows that he cannot simply seek retribution on the Main Six or the Princess of Day, so he waits, gathering intel on his foes, learning of their weaknesses. When the time is right, he will strike. Can our heroes overcome King Sombra's plot for vengeance?
Sequel: The Return of the King
*Note: This story takes place in my official headcanon universe, not in the one for Shattering a Heart of Darkness