It was a week since the Evil Queen's disaster army came and things seemed to be going well so far, it was decided that the new Princess of Equestria would rule from her own castle and return to Canterlot when needed. Many of the royal guard moved to the Princess of Friendship's castle and many things of Celestia's were brought with them, as Twilight was going through the boxes she encountered a more weightier one, It was a pretty decent size. She discovered it held the box that Celestia used to keep the elements of harmony in and only she could open, The purple alicorn wondered if it would open for her so she tried and the box unfastened. In it was the calender date for the high council event that the sun queen marked out, It also contained spells that star swirl the bearded wrote that was for her eyes only but the one unique thing that was most special of all in this case was the last letter that Celestia wrote for Twilight Sparkle.

    My dearest most faithful student, Twilight Sparkle.

If you are reading this now then I must have passed unless I told you otherwise,

I'm sorry I wasn't there for your lifetime but know I will always be proud of you!

Watching you grow was an honor for me to see, how you solved the puzzles and challenges that life threw at you, Bonding with your friends, becoming the adult you became to be but, the most special thing you gave me was your friendship and becoming  my student. All those letters you have written to me I have kept, now I give them back to you to read over when you need a reminder or two. You have changed my life in many ways too and even inspired me. Know that I will always love you and remember, You'll be fine Twilight.

Your loving teacher Princess Celestia.

    She couldn't hold back the tears rolling down her face and even giggled at the last words she said in her letter, It gave her sweet memories of her teacher.

Flash Sentry suddenly came into the room with Celestia's buzzing book.

    “Oh! I'm sorry did you need a moment?” Twilight took a tissue to her face and blushed a little.

    “No, I'm fine. I didn't know you were here.” Twilight took the glowing book from the stallion's hoofs.

    “Yeah, they sent me here with the royal guard, I thought I could use the experience.”

    “It looks like a letter from Sunsetshimmer.” Twilight said in a nasaly voice.

    “Sunsetshimmer?”

    “Heh heh, could I have a moment? Alone?”

    “Oh! Of course.” the blue maned Pegasus bowed then left.

   Dear Twilight Sparkle,

I plan to visit Equestria soon and was hoping you could open the portal this evening?

Hope to see you soon.

-Sunsetshimmer.

    When she finished reading Sunset's short letter it occurred to her that she needed somebody to take her place, since Sunsetshimmer was being mentored by Celestia as she was, maybe there was something that made her new reformed friend special?

A warning buzzed in her head, “Remember she was too greedy? She didn't get what she wanted as soon as she wanted, that's why she left.”

Another reminder ran in her memory, “She's reformed now Twilight, remember?”

She had a long conversation with herself before she began to write.

Dear Sunsetshimmer,

It is great that you would want to come to visit!

I was wondering, would you like to stay in Equestria on a permanent basis?

I'm sure there's plenty I could teach you!

Your friend, Twilight Sparkle!