When an archaeologist's priceless jewel goes missing during a 1906 ocean liner voyage to Europe, eleven-year-old Samantha tries to discover which of the first-class passengers is the thief. Includes French glossary and historical information on travel and archaeology in the early twentieth century.

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.

After fourteen-year-old Enola Holmes seeks the missing Duquessa Del Campo in the seedy underbelly of nineteenth-century London, she finally reaches an understanding with her brothers Sherlock and Mycroft.

"When Rowan finds a skeleton on her family's property, investigating the brutal, century-old murder leads to painful discoveries about the past. Alternating chapters tell the story of William, another teen grappling with the racial firestorm leading up to the 1921 Tulsa race riot, providing some clues to the mystery."--

"After an invigorating but not exactly restful trip to a Yorkshire spa during which she survived a near brush with death and foiled a murderer, aspiring writer Aggie Morton and her friend Hector are thrilled to have the opportunity to stay at a camp by the sea and watch real paleontologists at work...Tensions are running high throughout the camp, from the cook, to the collectors, to the Blenningham-Crewes themselves, and become downright dangerous...

Eighteen-year-old aspiring chemist Elinor Dashwood and her younger sister Marianne, a budding detective, work together to solve the mystery of their father's murder. Includes author's note.

"In 1872, New Orleans is a city ruled by the dead. But to seventeen-year-old Celine Rousseau, New Orleans is a safe haven after she's forced to flee her life as a dressmaker in Paris. Taken in by the sisters of the Ursuline convent in the middle of the carnival season, Celine is quickly enraptured by the vibrant city, from its music to its fancy soirées and even its danger. She becomes embroiled in the city's glitzy underworld, known as La Cour des...

"Almost-eleven-year-old Josephine is NOT pleased to be moving into the Happy World trailer park over the summer of 1974. She misses her beautiful bedroom with ballerinas on the wall and her pretty, well-dressed friends. Happy World isn't happy. It's dingy and depressing! Nothing like the world that headstrong Josephine wants for herself. But when Josephine learns that her would-be next door neighbor in Happy World was kidnapped months ago, she develops...

In 1776, eleven-year-old Felicity suspects that an amateur naturalist visiting her family's Virginia plantation may actually be a British spy mapping Patriot plantations in advance of British raids. Includes historical information about the Revolutionary War.

In the aftermath of the 1906 San Francisco earthquake, twelve-year-old Clara finds a baby left on the doorstep of her family's boarding house, and sets out to unravel the surrounding mysteries.