While exploring Canterlot Castle, Pinkie and Rainbow Dash uncover a room filled with stone tablets connected to dials. Above each dial is the name of an alicorn. These couldn't possibly control an alicorn's power, could they?
Luna thinks Celestia has gone soft. Celestia reacts about as well as expected. The two sisters meet on the pitched field of the Iron Pony Competition to settle the score.
After accidentally learning that each Princess has their very own secret rooms to retreat inside whenever they wish, Twilight Sparkle makes it her mission to uncover just what could be inside Princess Celestia's.
With reluctance and after a great deal of personal reflection, Princess Luna decides that she needs an apprentice to assist her in caring for her subjects while they dream.
I see potential here, keep it up I wanna see where this goes.