A million dollars, or a clue? Police report a break-in at an elite hotel, and the suspects sound suspiciously like Amy and Dan. There's a car and speedboat chase and an angry mob! When there's a clue on the line, anything can happen

Blue Sargent has found things. For the first time in her life, she has friends she can trust, a group to which she can belong. The Raven Boys have taken her in as one of their own. Their problems have become hers, and her problems have become theirs. The trick with found things though, is how easily they can be lost.

As the race to find the 39 Clues builds to its explosive finish, Amy and Dan must explore an ancient culture and steal a clue guarded by thousands of the world's best-trained soldiers. It's the most dangerous search yet ... and it may mean the end for Amy and Dan

Shaken by a shocking loss, Amy and Dan flee to an exotic land and trace the footsteps of their most formidable ancestor yet: a military leader of mythic proportions

Seventeen-year-old Destiny keeps a painful childhood secret all to herself until she and three classmates from her exclusive boarding school take off on an unauthorized road trip in search of "one fair day."

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

In the small town of Ondine, Louisiana, fourteen-year-old Iris uncovers family secrets when she conjures up the ghost of a boy missing for decades and decides to solve the mystery of his disappearance