Melly and Anny Beth agree to participate in Project Turnabout, a scientific experiment in which they are given a shot that will make them grow younger, until they receive a second injection that will stop the aging process, but when other participants die after receiving the second shot, Melly and Anny Beth refuse to have the shot and set out to find someone to care for them when they are too young to do it themselves.

Colin and Nevaeh find vintage letters that lead to interlocking mysteries from the 1970s and '80s, and they learn about "women's lib," the ERA, and other social issues from that time in history-and the way echoes from that era affect Colin and Nevaeh themselves. When Colin finds a shoebox full of letters hidden in a stranger's attic, he knows he's supposed to throw them away. That's his summer job, getting rid of junk. But Colin wants to rescue the...

Allowing herself to be hypnotized, fifteen-year-old Kira reveals memories of another time and place that may eventually cost her and her mother their lives.

Fourteen-year-old Avery Armisted and sixteen-year-old Kayla Butts, once good friends, begrudgingly travel to Spain together for a summer vacation where they uncover a secret their families kept hidden from them their entire lives.

Twelve-year-old twins Nick and Eryn investigate why their mother and new stepfather are keeping secrets, why they are forbidden to meet their stepsiblings, and, most important, why their lives are in danger.

In 1927, at the urging of twenty-one-year-old Harriet, Mrs. Livingston reluctantly recalls her experiences at the Triangle Shirtwaist factory, including miserable working conditions that led to a strike, then the fire that took the lives of her two best friends, when Harriet, the boss's daughter, was only five years old. Includes historical notes.

While investigating a series of old, spooky photos of a seemingly transparent boy for their friend Ree, who lives above a funeral home, best friends Colin and Neveah follow the clues to solve this mystery from the Great Depression.

After her father is convicted of embezzlement, Becca Jones, fourteen, and her mother flee Georgia for small-town Ohio but three years later she learns that his misdeeds may have jeopardized not just her future but also her life.

"It isn't natural for you to be younger than your great-grandchildren. We messed around with nature, and we shouldn't have. Melly and Anny Beth both lived normal lives throughout the 20th century. But in 2000, when they are old and ready to die, they are selected to participate in Project Turnabout and are given an injection to make them grow younger..."