Twilight, or now Princess Twilight, is staying in Canterlot for her first few days as a Equestria's newest princess, before returning back to Ponyville. As she is walking around, remembering her days there as a filly, she comes across a box. A box that should have been hidden. And it reveals a big secret. A secret that was meant to be hidden.
The artwork is my own. I drew while I was in the car, coming back from the dentist. :-)
It's only rated Teen as it mentions abuse and rape.