The Treasure of Oooh.

“And then she started glowing, and imploded!” said Rainbowdash. “And we looked at the book to see her replacing Shadus in the story!” Applejack blurted, “See for yourself!” Celestia opened the book “Oh my…” she said, “This is a big problem…” she looked at the short page to see Twilight in the story, looking at Twi-Star the ghost of Oooh. “I think we should continue reading.” Said Celestia, “And then we shall see what happens…” so everypony calmed down and listened as Celestia read the next parts of the story.