Princess Celestia just sent Twilight Sparkle to ponyville to help set up the summer sun celebration but thinks she might need help with the trials to come. So she sends another pony which she calls "The Other Student" to assist Twilight. Said "other student" is a grey earth pony.twilight is shocked, amazed, and disturbed that a earth pony is 1.in princess Celestias school for talanted UNICORNS 2.hes reading a floating book and 3. HES NOT A UNICORN!