The end of history. Sera has a secret. She's seen the future, and it is terrifying. Unfortunately, she can't do anything to prevent the Cataclysm

When best friends Dak and Sera tumble upon the key to time travel, a hand-held device known as the Infinity Ring; they're swept up in a centuries

Sam Faulkner travels back in time to medieval Scotland, ancient Egypt, and Renaissance Bruges in search of his missing father.

World War II is raging across Europe and the Axis and Allied powers are in a stalemate. Dak, Sera, and Riq can tip the scales in the Allies' favo

A quiet visit with her grandparents turns into a lesson in the fluidity of time for Polly O'Keefe when she meets several strangers from overlappi

Meg Murry and her friends become involved with unearthly strangers and a search for Meg's father, who has disappeared while engaged in secret wor

Jack and Annie have four time travel adventures involving Alexander the Great, Harry Houdini, Florence Nightingale, and Pele.

The fifteen-year-old Murry twins, Sandy and Dennys, are accidentally sent back to a strange biblical time period, in which mythical beasts roam t

Things are going nowhere for lowly MIT research assistant Matt Fuller--especially not after his girlfriend drops him for another man. But then wh

With Meg Murry's help, the dragons her six-year-old brother saw in the vegetable garden play an important part in his struggle between life and d

Eddie Cantrell is married to the king of Denmark's daughter and is sent by Admiral Simpson to the Carribbean to secure access to the most valuabl

Several thousand years from now, advanced humanoids known as the Makers will implant clockwork devices into the heads of humans. At the cost of a