A brand new adventure from the world of The 39 Clues!For 500 years, the Cahills have been the most powerful family in the world. For 500 years, they've protected the source of their power - the 39 Clues. And for 500 years, they've kept their secrets silent. Until now.This extraordinary stand-alone novel cracks open the Cahill vault to tell the story of the most coveted piece of artwork in the world, a masterpiece that has been the target of seven separate theft attempts: Jan van Eyck’s altarpiece at Ghent. OPERATION TRINITY chronicles the first Vesper attack on the altarpiece in the 1600s, then jumps to WWII and young Grace Cahill’s desperate bid to save the masterwork from the Nazis. The final piece of the novel tells the story of Ian and Natalie Kabra’s first solo operation and features an 11th hour appearance by Grace Cahill on her final mission.History will never be the same.

A brand new holiday adventure from the world of The 39 Clues! The year is 1914 and war is raging in Europe. Eager to win glory for the Lucian branch, sixteen-year-old Rupert Davenport (Ian Kabra's ancestor) sneaks off to France to join the fighting. But the reality of battle is unlike anything Rupert imagined. Even if he survives the bullets and explosions, he'll have to face an even deadlier threat: the Vespers-the Cahill family's rivals who are plotting a dangerous scheme behind enemy lines. Yet just when Rupert's about to lose hope, Christmas Eve arrives and Rupert witnesses something that changes everything he thought he knew about war . . . and his own family. Is it a holiday miracle? Or a twisted game designed to destroy the Cahills?

A brand new adventure from the world of The 39 Clues! After 500 years, the Cahill family's most dangerous secrets are about to be revealed. Read at your own risk . . . Fourteen-year-old Fiske Cahill thinks he's safe when he hides away on the world's first nuclear submarine . . . until he realizes there's a Vesper on board. Does he have what it takes to stand up to a ruthless enemy?

A brand new adventure from the world of The 39 Clues! After 500 years, the Cahill family's most dangerous secrets are about to be revealed. Read at your own risk . . . Young Harry Houdini's family is eager for a fresh start in America, but secrets from their past have followed them to New York. When the aspiring magician is kidnapped by a dangerous enemy, the Vespers, Houdini discovers a secret talent: death-defying escapes. Will his rare talent allow him to survive the attack? Or will it get him into deeper trouble than he ever imagined?

Three amazing adventure stories from the Cahill vault! Read at your own risk. In 1814, redcoats burned the White House to the ground. In 1889, Harry Houdini discovered a trick that would save his life. In 1955, the U.S. launched the world's first nuclear submarine. And one family pulled the strings behind the scenes at each of these events: the Cahills -- the most powerful family the world has ever known.Now the Cahills have opened their vault and dangerous secrets are pouring out. This volume contains three stories previously published as ebook adventures, THE REDCOAT CHASE, THE SUBMARINE JOB, and THE HOUDINI ESCAPE, three stories that will change history as we know it forever. Flee alongside a young Cahill as Washington burns, unlock Houdini's magic, and stow away with young Fiske Cahill on a desperate mission that could cost him his life.Venture into the vault if you dare. But don't say we didn't warn you.

Time is running out for Grace Cahill as she struggles to make the most important choice of her life: a decision that will shape the future of the Cahill family . . . and the world at large. After spending centuries lurking the shadows, the Cahills' enemy - the Vespers - are planning an attack, and sending Amy and Dan on a dangerous hunt for The 39 Clues might be the only way to stop them.

International bestseller David Baldacci pens the stunning conclusion to Cahills vs. Vespers! It started with a kidnapping. A shadowy organization known only as the Vespers snatched seven members of the Cahill family and demanded a series of bizarre ransoms from around the world. Thirteen-year-old Dan Cahill and his older sister, Amy, began a global treasure hunt, determined to bring back whatever Vesper One needed, so long as it kept the hostages safe.But when they deliver the last ransom, Amy and Dan discover Vesper One's terrifying endgame. The objects he demanded are vital pieces in a Vesper plot that will harm millions of innocent people. Now the two siblings and their friends are in an all-out sprint to stop Vesper One . . . before the whole world goes BOOM.

Are you ready to save the world? The bestselling series returns with an adventure spanning 6 explosive books, 2 secret-filled card packs, and a website that places readers right in the action. Thirteen-year-old Dan Cahill and his older sister, Amy, thought they belonged to the world's most powerful family. They thought the hunt for 39 Clues leading to the source of that power was over. They even thought they'd won. But Amy and Dan were wrong.One by one, distress calls start coming in from around the globe. Cahills are being kidnapped by a shadowy group known only as the Vespers. Now Amy and Dan have only days to fulfill a bizarre ransom request or their captured friends will start dying. Amy and Dan don't know what the Vespers want or how to stop them. Only one thing is clear. The Vespers are playing to win, and if they get their hands on the Clues . . . the world will be their next hostage.

Operation Trinity is the story of the most coveted work of art in the world, a masterpiece that has been the target of a record seven theft attempts. The adventure jumps from the first attack on the masterpiece to WWII and young Grace Cahill's desperate bid to save it from the Nazis. The final story tracks Ian and Natalie Kabra’s first solo mission – and the searing betrayal that nearly costs them everything.