Nicko and Snorri are trapped in Time, and Septimus Heap goes on a quest to find the House of Foryx, a place where all Time meets.

After Dorothy disappears during a mission through time, Ash looks for her around every corner, but she has become someone else, Quinn Fox--the woman fated to kill him.

When Joe, Fred, and Sam are sent back in time by a magic book, they find themselves face-to-face with giants, dragons, wizards, and the Knights of the Round Table.

Being a mad scientist in the modern world is very hard work. With so much that needs to be done in such a short period of time, multitasking can get way out of hand. Franny needs some additional help. But for Franny there is only one person in the world she trusts to help her with her experiments - herself. So she acquires assistance the mad scientist way, by building a few real, live, steel-plated Franbots.

Ash has the ability to time travel and meets up with Dorothy from 1913 who is trying to escape an arranged marriage, as they find themselves in a future world of violence and chaos, with Dorothy holding the key that could change the past.

After falling for Kate, her unexpected death sends Jack back in time to the moment they first met, but he soon learns that his actions have consequences when someone else close to him dies.

Sent back in time to 79 AD, on a mission to photograph the eruption of Mount Vesuvius, the Flashback Four race to get their picture.

A group of children and a spirit go back through time to discover the beginnings of Halloween.

When Joplin finds an antique platter with a beautiful Dutch scene, she idly wishes for the girl painted on the platter to be her friend and the next day Joplin finds the girl in the garden, longing to go back to her seventeenth-century home.

When Joe goes missing, Brett and Poppy travel through time to find their friend, and encounter a mythical city controlled by an evil villain cutting off the townspeople's supplies.