Citrus was a normal unicorn or so he thought. That all changed when he woke up one night to see that the small town of Ponyville was gone, and that there was nopony to be found. He tried to remember what happened in between then and now but it all seemed hazy, he could not remember but with a little time it slowly came to him. What he had done and why the town was gone.
This was inspired by a song from TheLivingTombstone
http://www.youtube.com/watch?v=OSZlAltkYoc