time travel

Dak, Sera and Riq might be in over their heads when they attempt to stop a Viking invasion!.

Chicago sixth-graders Jack and Ruthie return to the Thorne Rooms at the Art Institute of Chicago and once again go back in time while trying to stop an art thief from endangering the miniature rooms.

While Alex is getting to know his inventive neighbor Herbert they unexpectedly travel to the twenty-second century through a space-time wormhole where they encounter aliens, jet packs, and their future selves.

In Paris with his parents to sell family heirlooms, fourteen-year-old Greg Rich suddenly finds himself four hundred years in the past, and is aided by boys who will one day be known as "The Three Musketeers.".

Stosh travels back to 1969 to try to prevent the untimely death of Roberto Clemente, a legendary baseball player and humanitarian, but upon his return to the present, he meets his own great-grandson who takes him into the future, and what he finds there is more shocking than anything he has encountered in his travels to the past.

Jack and Annie travel back to Victorian London when Merlin asks them to use their magic to inspire Charles Dickens to write "A Christmas Carol.".

Princess Emma is determined, with the help of her favorite bat, Li'l, and some long-long ancestors to reverse the curse put upon her lineage by an angry fairy.

While visiting her grandmother's log cabin, Liz encounters the ghost of her great-great-great grandmother and suddenly finds that she has been transported back in time.

Jack and Annie must travel back in time to New Orleans in 1915 to help a teenaged Louis Armstrong fulfill his destiny and become the "King of Jazz.".

Jack and Annie travel back to nineteenth-century Ireland to inspire a young Augusta Gregory to share her love of Irish legends and folktales with the world.