When Kit's family has to take in boarders, it seems as if they may be able to keep their house although her father lost his business, but the changes put a strain on Kit's friendship with Ruthie, especially as Kit spends her days helping cranky Uncle Hendrick.
Caroline Abbott and her mother make a dangerous journey across Lake Ontario to the British fort where Papa is being held prisoner, and when Mama is unable to see him, it is up to Caroline to pass Papa a secret message right under the nose of a British guard.
A community of mice and a cheese-loving cat form an unlikely alliance at London's Cheshire Cheese, an inn where Charles Dickens finds inspiration and Queen Victoria makes an unexpected appearance.
Eleven-year-old Flavia and her friends Jonathan, Lupus, and Nubia are invited to visit Pulchra, who asks them to uncover who is trying to poison her mother.
Flavia and her friends embark on a quest across Mauretania to Volubilis to steal Nero's Eye, a gemstone that bestows the power of rule upon its owner, according to the prophecy of the Delphic Oracle, and they encounter various dangers along the way.
A detective goes missing when the ship carrying Flavia and her friends from North Africa to Ostia is wrecked, and the other detectives take on a quest that brings them to the port of Alexandria where they must decipher codes, travel down the Nile River, and enter tombs to solve the mystery.
Flavia and her friends return to Rome from Ephesus in the year 81, and when they learn about the mysterious death of Emperor Titus, they investigate, leading to many changes for Italia and for themselves.
Amy starts her freshman year with a new crush on Ricky, Cat's brother, and a new friend in Finn, the lighthouse keeper, but things get complicated when Craig returns from Boston and Finn is accused of arson.