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The 39 Clues: Doublecross
Series · 4 books · 2015-2016

Books in series

Mission Titanic book cover
#1

Mission Titanic

2015

The Outcast was banished from the Cahill family, never mentioned again. For years, he’s been lurking, watching, recruiting, waiting for the chance for revenge. And now he strikes, with a diabolical plan. The Outcast recreates four of history’s most infamous disasters, and gives the Cahill kids just days to stop them. There are innocent lives on the line, but what might be worst of all is the doublecross that the Cahill kids don’t see coming… Will Amy be able to take orders from Ian, now that he’s the head of the family? What famous Cahill villain from the past turns out to have an even deadlier brother? And will Saladin ever get a dish of red snapper again?
Mission Hindenburg book cover
#2

Mission Hindenburg

2015

Never turn your back on the Cahills . . . The most powerful family history has ever known returns with a vengeance in The 39 Clues: Doublecross! The Cahills are the world's most powerful family, but their strength is being tested. A sinister man calling himself The Outcast has targeted the family and set them an impossible test. He's recreating four of history's worst disasters and challenging the young Cahills to find and stop the tragedies before it's too late. Now, with one disaster behind them, siblings Dan and Amy Cahill and their friends have just days to discover what the Outcast's next move will be. Their frantic search seems to be pointing toward a terrifying air disaster, the explosion of the Hindenburg airship. But no one travels by airship anymore—what do the Outcast's cryptic messages mean? The young Cahills must split up and take to the skies to try to find the answer . . . before their whole world comes crashing down.
Mission Hurricane book cover
#3

Mission Hurricane

2016

Eye of the Storm Thirteen-year-old Dan Cahill and his older sister, Amy, know that a disaster is about to strike the world. They know they are the only ones who can stop it, and they know they may already be too late. The person behind the disaster is their own relative, a man who calls himself the Outcast. He’s already recreated two of history’s worst disasters, and is only biding his time before he strikes again. The clues that the Cahill kids have gathered suggests that the Outcast’s latest disaster is modeled after Hurricane Katrina. But what city will he target? And how can anyone conjure up a hurricane? Dan and Amy have no answers and very little time to find them. All they can count on is a tidal wave of trouble coming, and only them to stand in its way.
Mission Atomic book cover
#4

Mission Atomic

2016

Confidential until July 2016! Checkmate. Thirteen-year-old Dan Cahill and his older sister, Amy, are running out of time. An exiled Cahill known as the Outcast has already recreated three of history’s worst disasters, and he’s saved the worst for last. If Dan and Amy can’t find and stop the Outcast fast, he will initiate a full-scale nuclear meltdown. But as Dan and Amy race around the world, they discover something horrifying. The Outcast’s disasters are only a smokescreen to cover up his true plan, a diabolical revenge on the family that betrayed him. Soon Amy and Dan will have to confront a hard truth: sometimes the only way to save the world is to sacrifice everything you love.

Authors

Jenny Goebel
Jenny Goebel
Author · 11 books

Jenny Goebel is the author of GRAVE IMAGES, a forthcoming middle grade novel from Scholastic (Nov 1,2013). She lives just outside of Denver, and if she's not hiking up a mountain or mothering, or doing both simultaneously, she's probably sitting at her computer writing.

Sarwat Chadda
Sarwat Chadda
Author · 14 books

Sarwat Chadda has lived and traveled throughout the world, from China to Guatemala. He’s been lost in Mongolia, abandoned at a volcano in Nicaragua and hidden up a tree from a rhino in Nepal. Not to mention being detained by Homeland Security in the US and chased around Tibet by the Chinese police. Maybe he just has that sort of face. Anyway, now he’s trying to settle in one place and stay out of trouble. Hence his new career as a writer. It’s safe, indoors and avoids any form of physical danger. Throughout his travels, Sarwat has soaked up the myths, legends and cultures of far away places. Now, with the Ash Mistry series, he aims to bring these unfamiliar tales of ten-headed demons and blue-skinned heroes back home and put them beside the exploits of Achilles and Thor. His heroes are Prince Rama and the demon-slaying Kali. Isn't it about time you met them too?

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The 39 Clues: Doublecross