Princess Twilight finds herself summoned through the mirror for a difficult test of friendship versus violence as an old foe once again threatens her friends and the world. With no friendship magic available, can Twilight make do with a sword?

This story was written for the March 2016 Equestria Daily Friend-off #4. The rules read: "Take your favorite piece of artwork and write something about it." I bought a poster of this image by NCMares. It was so dramatic that with that prompt I had to write about it:
http://ncmares.deviantart.com/art/Ninja-Twilight-Redux-472479462