Many years after the death of the Black King, Alagaësia faces an even greater threat, one that originates from a land unheard of in this world. When confronted with challenges that no Alagaësian hero has ever faced in the history of time, can Eragon Shadeslayer, Saphira Brightscales, and their friends still come out victorious? Or will the clash of these two realities destroy them?