[Sequel to Revelations and Lost] When the capital of the Crystal Empire returns, bringing with it King Sombra and Malaskaar. Celestia must summon Grendel Emeric and Turil Tailclaw back to Equestria to finish what was started a thousand years ago.
Rarity orders a collection of gems from the crystal empire to give her new designs that little bit extra. Included in the shipment is a stone that is far more than what it seems. The gem holds a dark secret and the key to one pony's life.
Shining Armor goes on a quest to become an alicorn in order to save his love ones from mourning his eventual death. To do this, he must prove him self worthy of the spirits of harmony, as villains plot in the shadows.
Doctor Whooves tags along with the Mane Six when they travel to the Crystal Empire. But they soon find out that their friend, the Doctor, knows a lot more about the Crystal Empire then they realize when he runs into King Sombra.
After his defeat, Sombra is forced to flee his rightful kingdom. But perhaps a young unicorn foal is just what he needs to set a new plan into motion to take back his throne.
Celestia receives a letter telling her that a dark artifact has been recovered. What should have been a simple task to destroy the artifact becomes a dangerous challenge, as Luna and two guards find out that the artifact has a mind of its own.
Equestria's history is catching up to the present. When Twilight Sparkle uncovers a dark crystal heart in King Sombra's tomb, she and her friends find themselves on the run from timberwolves, windigos, and Sombra himself.
The greatest villain of another realm has been exiled to another universe, one that appears to be filled with magical creatures in their own right. Makuta seeks the aid of King Sombra and Nightmare Moon to conquer the new universe he found himself in