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?

Twilight and her five friends are transported during a botched spell, across dimensions to... Ponyville, Equestria? But not the same one that they knew. Sitting on a bench is Harpsy and Babar. The Doctoress avoids apples from an aspiring Applebuck. And in a library across town, six stallions join their forces as they try to decipher the appearance of filly look-alikes of themselves around Ponyville!

While Twilight Sparkle and her friends go off to fight a dragon, a distressing thought occurs to Spike - as a dragon, he won't always be loved. As the insecurity sets in, he makes a brash decision: running away to pursue a life of crime!

Luna has returned to Equestria, but she is as cold and distant as the moon that held her captive. Celestia broods on her throne, regretting mistakes made and prices paid. Twilight Sparkle contemplates betrayal, and as her faith drains away, bitterness takes its place. And in the darkness, a relic of an ancient tragedy watches, his life consumed by greivances that he can neither remember nor forget. Betrayed and betrayers all, four ponies in need of a redemption that only one seeks. Will Honesty be enough to save them? Can one hoof, extended in trust and forgiveness, mend four wounded hearts?

Includes Applejack X Luna and slight Twilight X Celestia shipping.

With thanks to my editors, peppermint-roo.deviantart.com and sosweetntasty.deviantart.com

Written prior to season 2, so severely jossed by canon.