While working as a reporter during her summer vacation in 1935, Kit uncovers a mystery at the Cincinnati Zoo involving suspected break-ins at the monkey house.

In 1826, strange occurrences on eleven-year-old Josefina's New Mexican "rancho" lead the young healer to wonder if old legends of lost treasure and the wandering ghost called La Llorona may be true. Includes a Spanish glossary and historical background information.

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.

During the War of 1812, Caroline finds evidence that someone is smuggling precious supplies to the British and fears that the traitor may be her own uncle. Includes an "Inside Caroline's World" essay about smuggling during the War of 1812.

Molly becomes weary and troubled in the spring of 1945 while doing her patriotic duty to help the U.S. win WWII, and when her father returns home safe, he seems slightly changed.

Caroline worries that British spies may be lurking in Sackets Harbor, but when strange things start happening at Abbott's Shipyard Caroline wonders if a spy, either someone she has known all her life or Papa's long-lost friend, is responsible.