Sombra has fallen and the crystal ponies are free of their curse. Sombra; now defeated, is given a second chance by a being known as Zero to redeem himself of his crimes.

Will he succeed and atone for his sins? Or will he fail and meet his demise?

Rainbow Dash finds a mysterious book in the library. A book marked with a known symbol, and bound with a spell that may threaten Equestria. The origin of the spell and who conjured it is yet, a mystery. Will they know the purpose of the book's existence? Or will they fail and bring chaos upon the lands? Only fate can tell...