What if Twilight Sparkle's letters to Princess Celestia started a religion?

This is the story of Brother White and Brother Scroll. One of them is an upstanding young unicorn eager to do whatever he can to make other ponies happy. The other is a shy little loner who's never had a real friend before. What do these two young stallions have in common? They are both members of the Fraternity of the Joyous Friends of Princess Celestia, an organization dedicated to teaching Equestria and the world about the magic of friendship. When Scroll and White are assigned to Earthquake Island, however, they find themselves in over their heads. Can the teachings of the Book of Friendship help them save an island run by a brutal warlord, wracked by war, poverty, and hatred?

Pinkie Pie is visited by a strange customer whilst working at Sugarcube Corner. Hilarity ensues.

The Elements of Harmony are defeated and Nightmare Moon stands on Equestria's throne as their new Queen. Is Equestria doomed to suffer through night time eternal or will they be... perfectly fine? Twilight finds her new job as slave or "personal assistant" to her new ruler to be a bit maddening. But is this evil sarcastic queen really as bad as she originally believed? And just how many others are diabolical enough to cash in on the change in staff? Can Nightmare truly run a peaceful Equestria? Let me just answer all these questions right here in the description...