Most sixteen-year-olds have friends. Aden Stone has four human souls living inside him: one can time travel, one can raise the dead, one can tell the future, and one can possess another human, and then he meets a girl who quiets the voices. (sequel: Unraveled)
Thirteen-year-old Johnny Maxwell acquires the neighborhood homeless woman's shopping cart when she is injured and discovers that its contents have the ability to send him back in time from 1996 to 1941 England.
Meg Murry and her friends become involved with unearthly strangers and a search for Meg's father, who has disappeared while engaged in secret work for the government. (sequel: A Swiftly Tilting Planet)
Sixteen-year-old Alaric discovers how to travel to an alternate reality, where his mother is alive and his place in the family is held by a girl named Naia.
During a school trip to England, fifteen-year-old Callie buys a pair of Prada shoes in an effort to impress the popular girls, a scheme that backfires and sends Callie back to 1815.
When thirteen-year-olds Jonah and Chip, who are both adopted, learn they were discovered on a plane that appeared out of nowhere, full of babies with no adults on board, they realize that they have uncovered a mystery involving time travel and two opposing forces, each trying to repair the fabric of time. (Sequels: Sent, Sabotaged, Torn, Caught)
When seventeen-year-old Tessa Brody comes into possession of an ancient unicorn tapestry, she is plummeted into sixteenth-century England, where her life is intertwined with that of a handsome nobleman who is desperately trying to escape a terrible fate.
Middle schooler Ryan is hit by a car and swept into this time-travel thriller. Ryan faces a number of narrow escapes as he learns how to use “leapholes” and law books to travel back in time to meet the people behind the cases that have established precedent for our time.
Sequel to: Both Sides of Time. Strat, the wealthy boy with whom Annie fell in love during her first time trip to the 1890s, needs her help when he reveals her real origin and finds himself confined in a mental asylum.
The summer after her senior year, Annie, wishing she could have lived a hundred years ago in a more romantic time, finds herself in the 1890s and it is indeed romantic-- and very painful. (Sequels: Out of Time, Prisoner of Time, For All Time)