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...

After Ashley and Kristi find an antique doll buried in old Miss Cooper's garden, they discover that they can enter a ghostly turn-of-the-nineteenth-century world by going through a hole in the hedge.

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.

Alarmed by a prophecy that the world will end with the arrival of the year 1000, the students of Dragon Slayers' Academy get some advice from Zack, a boy who has traveled back from 1999.