By using her magic and a book that can only be read "by the light of the High King's tomb", Grandmother plans to destroy the D’Yer Wall.

It is a race between Second Empire and the Green Riders to obtain the book to either destroy or repair the great wall.

She offers herself as a distraction, trading clothes with Estora, to allow the King's betrothed to escape safely and return to Sacor City.

Knowing Grandmother's plot, Karigan travels back to Sacor City to thwart Second Empire and gain possession of the book.

In the aftermath of these events, Karigan is knighted by King Zachary and a translation of the book is given to Alton D'Yer in the hopes that he can discern the secrets in repairing the breach in the wall.