The Bearers of the Elements of Harmony have been called to Hogwarts by Countess Celestia. Celestia, and all the Wizards you remember in the Harry Potter books are acting very strangely, however, especially around a Slytherin named Ebony Darkness Dementia Way...
This is a crossover with the legendarily bad 'My Immortal'. It is different in the following ways (which may make it less funny, idunno)
*It is told from Twilight's perspective, and largely has correct grammar/spelling/name consistency.
*The Ponyvillians largely act in character (though few others do)
*It is from the perspective of a voyeur watching the insanity of My Immortal unfold.