The 39 Clues, Book 6

Governments were toppled and rulers were killed during the last attempt to find the lost treasure Amy and Dan Cahill are searching for - do they even stand a chance?

While learning the art of ancient warfare in an exotic location, Amy and Dan uncover a devastating secret about their family that changes everything in this high-stakes adventure.

A Clue found in Book 3 sends Amy and Dan jetting off to find out just what's behind the fierce rivalry between the Tomas and Ekaterina branches of the Cahill family. Was a Clue stolen from the Tomas branch? Where is it now? And most important, can Amy and Dan get their hands on it before their rivals do? It's a wild race that will take Amy and Dan deep into the bowels of the earth... and right into the hands of the enemy.

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 stand a chance?

Once Amy and Dan Cahill's choice was simple - take a million dollars or the first of 39 Clues that lead to the source of unimaginable power. Now it's clear that the hunt for Clues is bigger than anything that Amy and Dan could ever have imagined.

When the hunt for the 39 clues leads 14-year-old Amy Cahill and her younger brother, Dan, to Japan, their only chance to find the third Clue seems to lie with their unreliable uncle, Alistair Oh. Will they be foolish enough to make an alliance? With a Clue on the line, Amy and Dan might not have a choice. But in the Cahill family, trusting your relatives can get you killed.

The race is on to find 39 Clues that safeguard a great power, and 14-year old Amy Cahill and her younger brother, Dan, are shocked to find themselves in the lead. The search seems to be taking them to Vienna, and they hold a coded piece of Mozart's sheet music that's the key to finding the next Clue. But tailed by a pack of power-hungry relatives, Amy and Dan can't see if they are sailing toward victory - or straight into a deadly trap.

Fourteen-year-old Amy Cahill and her younger brother, Dan, thought they could return to their regular lives when they found the 39 Clues that safeguard their family’s great power. But they were wrong. Powerful enemies – the Vespers – have been waiting in the shadows. And they’ll stop at nothing to grab the Clues. Four powerhouse authors unite to expose the 500-year-old secret struggle between the Cahills and the Vespers. The Vespers are rising . . . and the world is in jeopardy.

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 around the world, in the form of 39 Clues? What if you were given a choice - take a million dollars and walk away...or get the first Clue? If you're Amy and Dan Cahill, you take the Clue - and begin a very dangerous race.

Amy and Dan find themselves in a new global race but this time, everything’s different. Those closest to them might be working for the enemy, and Amy and Dan are forced to ask themselves how far they’re willing to go to save the kidnapped Cahills. How much can you risk when there’s no one to trust?

Amy and Dan have managed to rescue one of the Cahills kidnapped by the Vespers, but the remaining hostages are still in peril. Their search for the next ransom item leads Amy and Dan to Turkey and then to Italy where a visit to the site of an ancient disaster changes everything. The Vespers are far more dangerous than the siblings ever imagined and, even worse, it looks like they have an undercover mole posing as a Cahill. Amy and Dan have to face the biggest decision of their lives with nowhere to turn... and no one to trust.

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 know they're facing life in prison...or worse. But with the Cahill hostages still in peril, Amy and Dan have no choice but to launch a mission that leads them to an ancient city full of dangerous secrets. With a Vesper mole sabotaging the Madrigals from inside, Amy and Dan have to fulfill their enemy's request before it's too late. Vesper One has developed a taste for killing Cahills, and Amy and Dan aren't going to wait to see who's next.

International best seller David Baldacci pens the stunning conclusion to Cahills vs. Vespers! David Baldacci is the author of 23 books for adults, each of which has become both a national and international best seller.

The 39 Clues is unstoppable! The best-selling series returns with an adventure spanning four explosive volumes and a website that places listeners right in the action.

A surprising twist brings Amy and Dan back to New England for their first mission on U.S. soil since the beginning of the Clue hunt. But being close to home is anything but a comfort. The siblings have learned that there's a mole in the Cahill organization.... And the traitor is one of their closest confidantes. However, this betrayal is overshadowed when Amy and Dan make an even more devastating discovery: the truth about the Vespers' real plan. Burdened with this terrifying information, Amy and Dan are forced to ask an impossible question: Is it more important to save the hostages...or stop the Vespers?