Meg Murray, her little brother Charles Wallace, and their mother are having a midnight snack on a dark and stormy night when an unearthly stranger appears at their door. He claims to have been blown off course, and goes on to tell them that there is such a thing as a "tesseract," which, if you didn't know, is a wrinkle in time. Meg's father had been experimenting with time-travel when he suddenly disappeared. Will Meg, Charles Wallace, and their friend...

A group of children and a "spirit" go back through time to discover the beginnings of Halloween.

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.

This multiple-ending story allows readers to enter Kit's world during the Great Depression, where they can join her on exciting adventures to find ways to help the needy, have a hobo adventure, and maybe even hop a train! Illustrations.

Eric and his friends travel through time into Droon's dark and dangerous past and cross the Silver Sands in order to save not only Droon but also the Upperworld.

The magic tree house takes Jack and Annie back in time to feudal Japan where the siblings learn about the ways of the Ninja.

Owen is trapped in a time travel plot-your-own-adventure book, controlled by the reader, and a bizarre fellow prisoner, Kara Dox, might be his only hope for escaping to save Bethany.

Eight-year-old Jack and his younger sister Annie find a magic tree house, which whisks them back to an ancient time zone where they see live dinosaurs.

Time travelers Jonah and Katherine arrive in 1611 to rescue John Hudson, the missing son of 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. Includes facts about Henry Hudson's explorations.

Keah and her friends use the Moon Scroll to hunt for the wand of Urik. The Moon Scroll has the power to transport its readers back in time.