"Trust no one. Justine Byrne can't trust the people working beside her. She can't trust the women who live down the hall. She can't even trust the man in front of her, and she just might love him. Inside the walls of Arlington Hall, a former women's college in Virginia that has been taken over by the United States Army, hundreds of men and women sit, bent over stacks of paper. Pencils in hand, they labor to decode countless pieces of communication...

"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, even with Dan. Haunted by the ghosts of their past, chased by deadly competitors, Dan and Amy can't see who is an enemy and who is a friend. Their blindness leads to a terrible...

"Heiress Avery Grambs has to pick up the pieces and find the man who might hold the answers to all of her questions--including why Tobias Hawthorne left his entire fortune to Avery, a virtual stranger, rather than to his own daughters or grandsons. Thanks to a DNA test, Avery knows that she's not a Hawthorne by blood, but clues pile up hinting at a deeper connection to the family than she had ever imagined. As the mystery grows and the plot thickens,...

Told in multiple voices, fifteen-year-old Jamaican Louisa Adair uncovers an Enigma machine in the small Scottish village where she cares for an elderly German woman, and helps solve a puzzle that could turn the tide of World War II. A German soldier risks his life to drop off the sought-after Enigma Machine to British Intelligence, hiding it in a pub in a small town in northeast Scotland. Louisa Adair, a teen girl hired to look after the pub owner's...