The Maze of Bones

What would happen if you discovered that your family was one of the most powerful in human history? What if you were told that the source of the family’s power was hidden...

Mission Atomic

Thirteen-year-old Dan Cahill and his older sister, Amy, are running out of time. An exiled Cahill known as the Outcast has already re-created three of history’s worst disasters,...

Shatterproof

After pulling some spectacular heists, Amy and Dan have become two of Interpol's most wanted criminals. So when Vesper One orders them to steal the world's largest diamond, they...

Zen Ghosts

It's Halloween.The trees are ablaze in fiery reds. Excited children don colorful costumes. And there's mystery and fun around every corner!When Addy, Michael, and Karl finish...

Into the Gauntlet

Throughout the hunt for the 39 Clues, Amy and Dan Cahill have uncovered history's greatest mysteries and their family's deadliest secrets. But are they ready to face the truth...

The Emperor's Code

Amy and Dan must steal a Clue guarded by thousands of the world’s best-trained soldiers. With their enemies closing in, the brother and sister are separated. Now how will they...

Everything for a Dog

Bone is a stray dog, all alone in the world, looking for a safe place to call home. Charlie is devastated by the death of his older brother, but at least he has his brother's dog...

One False Note

Amy and Dan Cahill are hot on the trail of one of 39 Clues hidden around the world. When there's a Clue on the line, anything can happen.

Superspecial: Outbreak

CALLING ALL CAHILLS! Announcing a 39 Clues Superspecial adventure -- the gang is back, and called to investigate one of their own: Sinead Starling.

Mission Hurricane

The blockbuster series continues with a Cahill family member from the past bent on revenge! Who is the Outcast and why is he threatening the lives of innocent people? Book 3...

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