After all of this tiem, Twilight has ascended to the throne. Alas, an Alicorn may or may not live forever, but other subspecies of Ponies have a much shorter lifespan.
Without her best friends, Twilight has a hard time moving forward, sadness and frustration beginning to affect her day to day life. But her eldest fellow princess has an idea; a shrine is built to commemorate their friendship.
Twilight reminisces, remembering those that she'd loved and lost.
Based on Remembrance, by Argodaemon.