One hundred years. Twilight Sparkle is having a tough time stomaching that reality. She has lived a full hundred years in Equestria, and being an immortal princess promises only more centuries to follow. She's not sure if she's ready for the rest of her life.
But Twilight's lifelong friend and mentor has a special gift for her, something that will change her perspective about the future.
Lovely cover art is from Momomistress