After his girlfriend Holly is fatally shot during a violent struggle, nineteen-year-old Jackson uses his supernatural abilities and travels back in time two years, where he falls in love with Holly all over again, learns that his father is a spy, and discovers powerful enemies of time who will stop at nothing to recruit him for their own purposes.

Many years ago a slighted fairy placed a curse on a beautiful young princess--a curse that caused her and all her female descendants to turn into mean, ugly witches if they ever touched a flower after turning sixteen. Now, Princess Emma, who is about to turn sixteen herself, is determined to break the spell once and for all. Emma travels back in time to the day the curse was placed on her ancestor in the hope of preventing the curse from being cast....

When Mr. Cheeseman and his three "smart, polite, and relatively odor-free" children journey to the not-so-distant past, they meet something utterly surprising--the alternate versions of themselves.

A magical coin coin leads sixth-graders Ruthie and Jack to 1753 Massachusetts and to Jack's pirate ancestor when they return to the Art Institute of Chicago's miniature Thorne Rooms on a mission to restore an African American family's reputation.

When a homework assignment and a magic table summon real and fictional people from history, including the bloodthirsty pirate Blackbeard, sixth-grader Javi, his brawny younger sister Brady, and his brainy best friend Wiki join forces to save the world.

David, Xander, Dad, and Keal discover that Taksidian wants their house for himself in order to use the time portals to build an empire, and unless they can find his weakness in time, the future of the world itself may be in danger.

Forced to live with her wealthy, estranged grandparents in New York City after her mother dies, sixteen-year-old Michele retreats to her room where she finds a diary that transports her back to 1910--with life-changing consequences.

Time travelers Jonah and Katherine arrive in 1611 to rescue missing child John Hudson, son of the explorer Henry Hudson, but just as the mutiny on the Discovery is supposed to start, Jonah and Katherine's knowledge of history is tested once again, and they fear that more is at stake than just one boy's life. Author's note includes facts about Henry Hudson's explorations.

FBI agent Chevie Savano escapes into the past to elude the secret police after they kill Charles Smart just as he is telling her of the WARP program, and she and Riley team up to find Colonel Clayton Box before he can launch missles at the capitals of Europe.

In Victorian London, Albert Garrick, an assassin-for-hire, and his reluctant teenaged apprentice, Riley, are transported via wormhole to modern London, where Riley teams up with a young FBI agent to stop Garrick from returning to his own time and using his newly acquired scientific knowledge and power to change the world forever.