In 1860, eleven-year-old Annie, who lives at the Red Buttes Pony Express station in the Nebraska Territory, asks Pony Express rider Billy Cody to help her find the person responsible for sabatoging her favorite pony Magpie.

In New York City in 1914, eleven-year-old Susan encounters a mystery through an independent-minded female boarder and becomes involved in the growing suffrage movement.

A young girl's life changes forever when she investigates a mystery with the help of writers, artists, and musicians in 1920s Harlem Bessie Coulter has no idea why her father spirits her and her brother, Eddie, away from their home in Burlington, North Carolina, in the middle of the night, leaving their sick mother behind. But from the moment she steps off the train at Grand Central Station, she's captivated by this teeming, colorful city that's both...

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 1904, twelve-year-old Orphelia follows her dream by running away from home to join an all-black minstrel show headed for the Saint Louis World's Fair, and learns about her family's troubled past in the process.

In 1878, twelve-year-old Ida Kate and her widowed father welcome a mail-order bride and her baby to their Kansas homestead, but Ida Kate soon suspects that the bride is not the woman with whom Papa has corresponded.

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.

Gold fever sweeps the country as a twelve-year-old aspiring writer travels to the Yukon with her family and best friend, fighting natural disasters and a clever thief After traveling from San Francisco by steam ship, Hetty McKinley, her best friend, Alma, and their families prepare for the five-hundred-mile trek north to the gold fields of the Yukon. It's only September, but the Arctic Circle is already frigid.   As the two families, along with hundreds...

Twelve-year-old Elspeth Monro, a Scottish settler and weaver's apprentice on the North Carolina frontier in 1775, must find out who is betraying her Loyalist family during the months before the start of the Revolutionary War.