The 39 Clues: Doublecross Series by Sarwat Chadda, David Pittu, Jenny Goebel, C. Alexander London, Jude Watson

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... moreThe 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? less

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... moreNever 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. less

Eye of the StormThirteen-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... moreEye of the StormThirteen-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. less

The thrilling conclusion to 39 Clues Part VI: Doublecross. A Cahill family member from the past is bent on revenge! Confidential until July 2016!