In 1943, a British fighter plane crashes in Nazi-occupied France and the survivor tells a tale of friendship, war, espionage, and great courage as she relates what she must to survive while keeping secret all that she can.

Hard-up Russia expert Dr. Sam Gaddis finally has a lead for a book that could set his career back on track. He has staggering new information about an unknown sixth member of the infamous Cambridge spy ring -- a man who has evaded detection for his entire life. But when his source suddenly dies, Gaddis is left with just shreds of his investigation, and no idea that he is already in too deep.

When Cammie Morgan arrives at her friend Macey's five-star hotel for the Democratic National Convention, where Macey's father is about to receive the vice presidential nomination, she thinks she's in for an exciting end to her summer break. But if you're a Gallagher Girl, 'exciting' and 'deadly' are never far apart.

Sixteen-year-old Kelly, a beautiful but socially awkward orphan with an IQ of 190, is recruited by a secret government spy agency to go undercover as a model and rescue the kidnapped father of the boy she has a huge crush on.

Mathilde escapes war-torn Sofarende and reunites with Megs and the other children who are working for the army to retake Sofarende from the enemy, but Mathilde must come to terms with her past treasonous actions and determine what she must do in order to prove her friendship to Megs.

"March 1920: Life has turned unsettlingly quiet for former British Intelligence agent Verity Kent and her husband, Sidney. But even that false calm is about to end. The French authorities soon request Sidney's help with a suspect who claims to have proof of treason -- shortly before she is assassinated. And Verity, too, is called to investigate a mystery . . . The murder of a Belgian lawyer aboard a train seems at first to be a simple case of revenge....