After a liver transplant, Andre suddenly becomes a time traveler, but is his soulmate Michael, who lives in 1969, or Blake, his donor's brother, who is training him in 2021?

When Joe travels back in time to 1944, he meets the Milwaukee Chicks, one of the only all-female professional baseball teams in the history of the game.

Geronimo Stilton participates in the Race Across America on his bicycle with his friend Bruce Hyena.

On Christmas Eve, Jack and Annie's tree house transports them to King Arthur's castle at Camelot, where they undertake a quest to the castle of the Otherworld.

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.

Regan Fitz and Elliot Mason have been enemies since they started training to become Glitchers--people who travel through time to preserve important historical events. But everything changes when they find a letter from Regan's future self, warning them about an impending disaster that threatens them and everyone they know. Will they be able to set aside their past in order to save the future?--Amazon.com

Fanciful adventures of Professor Sherman, who leaves on a vacation in a balloon, and lands on a volcanic island in the Pacific. Grades 5-9.

Esmeralda, who is both a princess and a powerful witch, must travel back in time to end a family curse or risk losing her true love, Prince Eadric, forever.

Nancy, Bess, and George are on an Alaskan cruise when things start to go awry.