The students of Twilight's School of Friendship are cramming for "History of Magic in Equestria" exam in the school library when they discover a part of the school that no pony else knows about. When they decide to do some exploring they end up learning much more than they bargained for.
Elenco: Tara Strong , Andrea Libman , Ashleigh Ball , Tabitha St. Germain , Cathy Weseluck , Michelle Creber , Claire Corlett , Madeleine Peters , Nicole Oliver , Peter New , Brenda Crichlow , Chantal Strand , Shannon Chan-Kent , Brian Drummond , Rebecca Shoichet , Kazumi Evans .