Pulled through a glass that brings him back in time, Septimus Heap becomes theapprentice of an alchemist.

Eleven-year-old Miri Gill feels left out in her family, which has two sets of twins and her, until she travels back in time to 1935 and discovers Molly, her own lost twin, and brings her back to the present day.

The youngest of the Murry children must travel through time and space in a battle against an evil dictator who would destroy the entire universe.

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

Dr. Clock invents a time machine, but his trip back to the era of the dinosaurs does not turn out as he had expected.

Their magic tree house takes Jack and Annie back to retrieve a lost story in ancient Greece, where they witness the original Olympic games and are surprised to find what girls of the time were not allowed to do.

Thirteen-year-old orphan Caleb is a "time snatcher" who travels through history stealing valuable artifacts from the past for high-paying clients of his ruthless guardian.

Molly Moon, reunited with her parents, is hypnotized by a mysterious turbaned gardener and eventually transported to India, where she meets not only a maharajah with a speech defect but also former versions of herself.

When Artemis Fowl's mother contracts a life-threatening illness, his world is turned upside down. The only hope for a cure lies in the brain fluid of the silky sifaka lemur. Unfortunately, the animal is extinct due to a heartless bargain Artemis himself made as a younger boy. Though the odds are stacked against him, Artemis is not willing to give up. With the help of his fairy friends, the young genius travels back in time to save the lemur and bring...

With the realm at peace and few dragons about, the Knights of the Round Table are bored, so Merlin sends them to face the most terrible lizards of all--dinosaurs.