When thirteen-year-old Ali spends the summer with her aunt and cousin at the family's vacation home, she stumbles upon a secret that her mother and aunt have been hiding for over thirty years.

In 1935, when her mother gets a job housekeeping for a woman who does not like children, eleven-year-old Turtle is sent to stay with relatives she has never met in far away Key West, Florida.

Twelve-year-old Ian is thrilled to beta test the mixed-reality version of his favorite game, but unless he, his sister, Lilli, and their cousin Derek defeat the dragon, it will be game over.

After a devastating tsunami in Japan, cousins Jet and Kai spend the summer together in Astoria, Oregon, training for the Young's Bay Treasure Island Race and become close friends in the process.

Twelve-year-old Edie and her impossibly cool cousin, Rae, set out to complete a mysterious list of "Good Ideas for Summertime" that their eccentric late grandmother wrote back when she was their age. But good ideas? Most of them seem like bad ideas. Reckless. Foolish. Ridiculous. Still, by accomplishing everything on the list, rule-abiding Edie feels certain that she can become the effortlessly brave adventurer she dreams of being, just like her daring...

Fourteen-year-old Brady and his cousin Quinn love extreme sports, but nothing could prepare them for the aftermath of Brady's close encounter with a meteorite after it crashes into his Black Hills, South Dakota, bedroom.

In 1928, when timid ten-year-old Nate learns that his parents have been lost at sea, he joins his father's cousin on a flight to Arabia where they must oversee the death and rebirth of the phoenix, thus beginning his training as a "beastologist."

When Bilal's family suddenly moves to America, his father stays in Pakistan, and Bilal embraces baseball, an unexpected friend, and a new language. But this new way of life does not feel so special without Baba--will he ever get to America to see Bilal pitch a game?

In 1864 twelve-year-old former slave Charlotte is lucky enough to live on a plantation near Richmond, Virginia, owned by a Miss Van Lew, who hates slavery, and when Charlotte overhears a conversation she realizes that her mistress is gathering information and passing it on to the Union army; Charlotte is eager to help, (especially since her own cousin, Mary, is involved) but her enthusiasm may endanger them all--or help free 400 Union soldiers who...

In the nineteenth century, ten-year-old Florence Crutchfield leaves a London orphanage to live with her great-uncle, great-aunt, and sickly cousin James, but she soon realizes the home has another resident, who means to do her and James harm.