Near the end of the first great alicorn war, a detachment of soldiers loyal to one of the usurpers was sent to do the unthinkable. They were sent to eliminate the rest of the true royal line, who were mere filly and foal at the time. After their victory, the younger usurper starts to hear things. She starts to believe she's insane until the words lead her into something. Something that would darken the skies of equestria. Suddenly the light isn't so soft or bright.