In Equestria, there are four princesses: Princess Celestia the Wise, Bringer of the Day and Protector of the Light; Princess Luna the Brave, Bringer of the Night and Protector of Dreams; Princess Cadence the Just, Bringer of Love and Protecter of the Crystal Heart; and Princess Chrysalis the Resourceful, Bringer of Peace and Protector of the Library of Wisdom. All four of them have proven time and time again their worthiness of the titles of Wise, Brave, Just, and Resourceful.
But rumors exist of a fifth princess: Princess Twilight the Kind, Bringer of Friendship and Protector of Magic itself. The rumors tell that Princess Twilight had five loyal friends, who together represented the fabled Elements of Harmony, using them to heal Luna the Brave, Chrysalis the Resourceful, and fabled mage Starlight the Powerful, along with many others.
But one day, Princess Twilight’s five friends and Princess Twilight herself disappeared, never to be seen again.
Now, the only clue as to her whereabouts lay in The Frozen Empire and it’s empress, the mysterious Winter Goddess, who communicates only by messenger even in times of dire need. The four Princesses have tried time and time again to talk to the Winter Goddess directly, but have made no progress.
And then, the Winter Goddess herself appears in the Throne Room, intent to call a Council of Royalty to discuss a new movement called the Eastern Ring.
Edit 2/27/20: This story's been featured. :)