When they got to the bottom of the steps, Sunset Shimmer was waiting by Twilight's locker.
"Hey! I was hoping we could maybe go and get some lunch or something?" Sunset saw the despair in their faces, "What's going on? What's wrong with you?"
"Vice Principal Luna's gone." said Applejack.
"What!" yelled Sunset.
One of the teachers scolded her.
"Sorry," she spoke softly. They told Sunset about everything that happened since they had gotten to school. Sunset's voice changed to a whisper, "What should we do?"
"I believe there is a book in Principal Celestia's office. If we can get to it, it may tell us where she went or why she left," said Rarity matter-of-factly.
"Great!" beamed Sunset, "If only we could get into her office."
Sunset's gaze fell to the ground.
Twilight's face lit up as she said, "We can. And I know exactly how to do it."