The 39 Clues

"Amy and Dan hit the high seas as they follow the trail of some infamous ancestors to track down a long lost treasure. H... (more)

"Amy and Dan hit the high seas as they follow the trail of some infamous ancestors to track down a long lost treasure. However, the real prize isn't hidden in a chest. It's the discovery of the Madrigals' most dangerous secret and, even more shockingly, the true identity of the mysterious man in black."--Amazon.com. (less)

This book is the ultimate source of Cahill knowledge. It contains every buried secret, every Cahill weapon or gadget, a... (more)

This book is the ultimate source of Cahill knowledge. It contains every buried secret, every Cahill weapon or gadget, all the strongholds, and each agent and founder. In it, you will discover the true story of Madeline Cahill as well as what happened after Isable Kabra was charged with murder. A guide to the characters and situations in "The 39 Clues" outlines the Cahills' secrets, including hidden facts, strategies, agents, lost founders, secret bases, and scandals, as well as information about all branches of the family. (less)