Inc. Scholastic

The Cahill family secrets have been guarded for centuries, but now the vault is wide open. For anyone who has followed the thrilling, globe trotting race for power, this comprehensive guide is your ultimate key to understanding the full scope of the 39 Clues universe. You will gain exclusive access to the deeply hidden facts, specialized strategies, and elite agents that make up the most powerful family the world has ever known. Delve into the complex histories of the lost founders, explore the layout of highly classified secret bases, and uncover the dark scandals that have shaped the Cahill legacy. Every branch of the family is heavily detailed, giving you the insider knowledge needed to decode the mysteries that Amy and Dan face at every turn. Whether you are a seasoned agent or a new recruit, this essential handbook provides all the classified intelligence required to master the hunt and survive the dangerous world of the Cahills.