Twilight Sparkle trotted down the halls of Canterlot castle, excited to be back in the castle for a little bit. So many things had changed since she first left Canterlot, but there were still many things the same.
Then she slowed to a stop, confused at what she'd thought she'd just seen. She walked backwards until she was right in front of a newly installed stained glass window. It seemed to show a young, white filly with fire coming out of a hoof and rockets coming out of her tail, surrounded by a burning building.
Twilight cocked her head. “Wha-?”