Throughout the hunt for the 39 Clues, Amy and Dan have encountered some of the darkest aspects of history... and had to deal with the role their family played. But are they ready for the truth? In this thrilling ninth installment, 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...

Now that the ley lines around Cabeswater are awake, magic is swirling around Blue and The Raven boys and Ronan Lynch's ability to pull objects from his dreams is almost out of control but worst of all, the mysterious Gray Man is stalking the Lynch family, looking for something called the Greywaren.

With their scheming neighbor Desdemona O'Pinion attempting to turn the Problim children against each other, the siblings come together to save the carnival and rescue their mother.

A young schoolboy from the early twentieth century hides a candy box with secret instructions in the floorboards of his boarding school for future generations of schoolchildren to find and follow to a mysterious hidden place. Story without words.

Mibs's cousin Ledge is disappointed to discover that his "savvy"--the magical power unique to each member of their family--is to make things fall apart, which endangers his uncle Autry's ranch and reveals the family secret to future reporter Sarah.

Rex and Tabby Jenson and their sons, Colt and Bastian, arrive in Freya Kiley's Australian neighborhood with little fanfare, but their presence sends fissures throughout their modest community.

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 Clue search yet--and it may mean the end for Amy and Dan.

In Edison, New Jersey, in a museum devoted to the inventor Thomas Edison, a loner sixteen-year-old girl with a limb difference and the seemingly coolest boy in school spend the night during a snowstorm, growing close until a shameful secret threatens everything.

Fourteen-year-old Amy Cahill and her younger brother Dan thought they could return to their regular lives when they found the 39 clues. But the Vespers, powerful enemies, will stop at nothing to get the clues. And with the Vespers rising, the world is in jeopardy.

After her mother's suicide, grief-stricken Leigh Sanders travels to Taiwan to stay with grandparents she never met, determined to find her mother who she believes turned into a bird.