Twilight Sparkle has been an alicorn for one hundred and fifty years; not a day passes with out her thinking of her long lost friends. Their descendants still stay close by, but it's not the same. Only Rainbow Dash's descendant, Sky Blitz, seems to want to maintain interaction with the violet alicorn.
After Celestia and Luna witness another visit to the graveyard by Twilight, they fear she may be losing her mental stability and wish to do something about it. However, Celestia's idea may not be the best. Can another pony who's experienced the same loss help Twilight move on and live her life without remorse?