Series The 39 Clues

The Cahills thought they were the most powerful family the world had ever known. They thought they were the only ones who knew about Gideon Cahill and his Clues. The Cahills were wrong. Powerful enemies -the Vespers- have been waiting in the shadows. Now it's their time t...
Fourteen-year-old Amy Cahill and her younger brother, Dan, have had enough. Not only do they have to find the 39 Clues first, they're expected to reunite their backstabbing family - the same people who killed their parents. But Amy and Dan haven't survived explosions and assassin...
The shadow of a man in black has followed fourteen-year-old Amy Cahill and her younger brother, Dan, on their worldwide search for 39 Clues that lead to a great power. Amy and Dan know the man in black has tried to kill them. They know he's a Madrigal, the most secretive and terr...
Shortlisted
One belief has sustained fourteen-year-old Amy Cahill and her younger brother, Dan, on their hunt for the 39 Clues: They are the good guys. But then a shocking discovery about their parents shatters everything Amy and Dan think they know, dividing the two siblings for the first t...
The hunt for 39 hidden Clues that lead to an unimaginable power have taken a heavy toll on fourteen-year-old Amy Cahill and her younger brother, Dan. They've just seen a woman die. They're wanted by the Indonesian police. They're trapped on an island with a man who knows too much...
Fourteen-year-old Amy Cahill and her younger brother, Dan, head to the Land Down Under to discover what their own mother and father knew about the hunt for the 39 Clues. But following in their parents' footsteps brings up lost memories for Amy so awful that she can't share them ....
A strange telegram lures fourteen-year-old Amy Cahill and her younger brother, Dan, deep into Russia and away from the only trustworthy adult they know. Signed with the initials NRR, the telegram launches a race to uncover a treasure stolen by the Nazis and the truth about the mu...
Betrayed by their cousins, abandoned by their uncle, and with only the slimmest hint to guide them, fourteen-year old Amy Cahill and her younger brother, Dan, rush off to Egypt on the hunt for 39 Clues that lead to a source of unimaginable power. But when they arrive, Amy and Dan...
ATTENTION! Amy and Dan Cahill have been located once again, this time in the company of the notoriously unreliable Alistair Oh. Could they have been foolish enough to make an alliance?Spies report that Amy and Dan seem to be tracking the life of one of the most powerful f...
Amy and Dan made the choice of a lifetime when they gave up a million dollars in favor of a Clue and joined a competition unlike any the world has ever seen. After barely escaping Paris with their lives, now they're in Vienna to discover the truth about their famous ancestor, ...
Minutes before she died Grace Cahill changed her will, leaving her decendants an impossible decision: "You have a choice - one million dollars or a clue."Grace is the last matriarch of the Cahills, the world's most powerful family. Everyone from Napoleon to Houdini is rel...
The book you see here is the ultimate source of all Cahill knowledge. It contains every buried secret, Cahill weapon or gadget, all the strongholds, and each agent and founder. In it, you will discover the true story of Madeleine Cahill as well as what happened after Isabel Kabra...