Following the events of “The Last Problem,” Twilight takes on a new apprentice in Luster Dawn’s absence. But when a heartbreaking betrayal leads to her student’s tragic fall to darkness, Twilight must make the ultimate sacrifice to save her home….
On a quest to unravel an ancient mystery, one which ties all ponies of Equestria together, Sunny Starscout and her friends make an awe-inspiring discovery...