Twilight sat down on a chair. "Spike, take a letter." She said.
"Dear Princess Celestia,
I cannot express my joy at becoming an Alicorn Princess of Equestria! I must also deeply thank you for letting me keep Star Swirl the bearded's journal. I was looking through Star Swirl'a entries, and I found a few interesting sentences. They read: "My dear, dear students. The elder one in the castle, the youngest lost. I fear for the sanity of the younger and the elder alike. Sweet, sweet Luna, in saving her sister from the dark fate, she took the form of a Nightmare. Poor Luna." The next entry explained a little bit. This entry read: "Cow Crap! Did I really write that? I wasn't to tell anypony about that! That is the last time I go drink! Dear reader, I assure you, the events I mentioned are long over. Do not worry about what you have just read. Simply enjoy your life under the rule of the Kind and Gracious Princess Celestia, the bringer of Day, and Night, and Nightmare. Crap! Ignore that last bit of that sentence! It is irrelevant. I simply meant that wih night comes nightmares!" That was the end of that entry.
What, my mentor, did these strange entries mean? What evil did Luna save you from? What did he mean you brought Nightmare. After I examined the book, I discovered why he did not erase his mistakes. The spell to stop any damage to the book/ writing was put over it. Why, dear Celestia, did h fear your sanity? He knew you would see our sister again. And why was none of this put in history books?
I, as always, await your reply.
Your student,
Princess Twilight Sparkle."
Twilight finished the talking and watched as Spike finished the last few lines.
"And…done!" He said cheerfully. He then blew fire over the parchment and watched as it flew away to the Princess of the Sun.