While attempting to get a mining Cutie Mark, Sweetie Belle makes the mistake of taunting a Diamond Dog. She is bitten, and suddenly the world becomes a very different place for the young filly. Join Sweetie Belle as she tries to understand what is happening to her, while a strange beast plagues the streets of Ponyville...

(also, I love comments... just saying ^^)

(Big thanks to http://silver---streak.deviantart.com/ for the cover image)