As Jake, Narine, and the redoubtable Shadwell struggle to solve the mystery of the Beyonders Code — one that seems to be connected across time and space — they are running out of options with the Faceless Man and his Order in hot pursuit. Will they uncover the mystery of mankind's greatest riddle? Will they unearth a stunning answer that turns all of modern history on its head? Will they prevent a cataclysmic end to the world? And will there be time for a sandwich? All of these answers and more will be revealed inside the book that contains its very own treasure hunt!