The Blackthorn Key Complete Collection (Boxed Set): The Blackthorn Key; Mark of the Plague; The Assassin's Curse; Call of the Wraith; The Traitor's Blade; The Raven's Revenge

All six thrilling books in the award-winning Blackthorn Key middle grade series are now available together in one action-packed, collectible paperback boxed set—perfect for fans of Dan Brown!

“Tell no one what I’ve given you.”

Until he got that cryptic warning, Christopher Rowe was happy, learning how to solve complex codes and puzzles and creating powerful medicines, potions, and weapons as an apprentice to Master Benedict Blackthorn—with maybe an explosion or two along the way.

But when a ...