In 1918, caring for her family's homing pigeons while her father is away fighting in World War I, twelve-year-old Pam comes to suspect that a mysterious stranger in her small North Carolina town is a German spy.

Sent to live with relatives in New Orleans during the War of 1812, eleven-year-old Elisabet determines to find a smuggler's treasure to ransom her imprisoned father.

In 1928, when her father tears her and her brother from their mother in North Carolina and takes them to live with aunts in Harlem, twelve-year-old Bessie is trapped in a strange place, especially after her father mysteriously disappears.

In the early 1700s, twelve-year-old Suzette, an Ojibwa-French girl, hopes that her father will win the fur-trapping contest so that he can quit being a voyageur and stay with his family year-round, but when he is accused of stealing, Suzette must use her knowledge of both French and Ojibwa ways to find the real thief.

In 1865, while helping her family keep their Virginia farm going through the end of the Civil War, twelve-year-old Cassie meets a Confederate deserter and a Yankee prisoner of war and tries to discover who has been stealing from the farm.

In 1754, with her own parents taken captive, twelve-year-old Rebecca must confront her fear and hatred of the Abenaki when a boy raised by members of that tribe is brought to the fort at Charleston, New Hampshire, just before a series of thefts occurs.

In 1724, twelve-year-old Rachel and her friend Sally discover a pirates' hiding place on a deserted island near Charles Town, South Carolina, and they suspect it may be connected to the woman who will soon become Rachel's stepmother.

At the start of the Klondike gold rush of 1897, while traveling through Canada with her father, uncle and friends, twelve-year-old aspiring author Hetty tries to determine the identity of a thief.

In 1868, twelve-year-old Emma and her widowed mother move to a tiny mining town in Colorado Territory to start a newspaper, but someone is determined to scare them away.

In 1925, after witnessing the violent actions of some gangsters, twelve-year-old Emily accompanies her older sister on a trip to a luxurious hotel on the New Jersey shore but worries that the gangsters have come to the same hotel. Includes historical notes on the time period.