Bored and lonely after his family moves from Berlin to a place called "Out-With" in 1942, Bruno, the son of a Nazi officer, befriends a boy in striped pajamas who lives behind a wire fence.
Curzon, having matured from boy to man over the course of the winter with the army at Valley Forge, worries that someone will learn he is a runaway slave passing for free, and tries to figure out the meaning of his friendship with Isabel.
What were once just boys' games become matters of life and death as Petros and his older brother Zola each wonder if, like their resistance-fighter cousin, they too can make a difference in a Nazi-occupied Greece.
Rescued from the gallows in 1850s London, young orphan and thief Mary Quinn is offered a place at Miss Scrimshaw's Academy for Girls where she is trained to be part of an all-female investigative unit called The Agency and, at age seventeen, she infiltrates a rich merchant's home in hopes of tracing his missing cargo ships.
In Victorian London, fourteen-year-old Modo, a shape-changing hunchback, becomes a secret agent for the Permanent Association, which strives to protect the world from the evil machinations of the Clockwork Guild.
With prominent men doubting her ability to rule and little preparation to serve as monarch, a young Queen Victoria finds the confidence to rule with help from Prime Minister Lord Melbourne.
Recovering from the flu that has decimated the world in 1918, Ivy, a girl with the ability to see ghosts, is shattered by the breakdown of societal governance and her father's and brother's role in the murder of a young German.
After his plane is shot down by Hitler's Luftwaffe, nineteen-year-old Henry Forester of Richmond, Virginia, strives to walk across occupied France, with the help of the French Resistance, in hopes of rejoining his unit.