I must share a most delightful fanfic with you all. I haven't had so much joy in reading a fanfiction like this one until I got into reading MLP fanfics... Hmm, also it was very enthralling and difficult for me to put down, even when my head and eyes were screaming at me to get some rest, still I had to press on until I finished it. Probably some of you have read it or heard of it - Night's Favoured Child
It's a what if situation, where Nightmare Moon won the fight and banished Celestia. It tells of how Twilight became the personal student of Nightmare. It also makes several shout outs to characters that were fun to find, such as King Sombra, Shining Armor, Trixie, Prince Blueblood, the Apples, and Rainbow Dash.
I highly recommend it to those that enjoy reading MLP fanfictions.