When Princess Celestia is down, Raven suggests a little spring cleaning. If only it weren't in the castle room that the princess has kept locked away for years.
An unofficial side-story to Scribbler's "FiT 2" audio drama on YouTube. Read as an unfamiliar version of this familiar guards-pony uncovers the mystery of his horrible night-terrors from another world.
Anyone who has sought counsel from Princess Celestia has met Raven, her most faithful aide. She has been a veritable second shadow to the princess for as long as the castle staff can remember... longer than they can remember, in fact. Much longer.