Aidan, a ninth century Irish monk is chosen to join a quest, to the farthest reaches of the known world: the glittering city of Byzantium, there to present the Holy Roman Emperor with the magnificent illuminated Book of Kells.

From solitude and innocence, Aidan is plunged into the heart of a dazzling, corrupt empire. Thrilling, awe-inspiring, terrifying, the journey leads to an adventure beyond his wildest dreams