When adventurous cousins Otto and Sheed Alston accidentally extend the last day of summer by freezing time, they find the secrets between the unmoving seconds are not as much fun as they expected.

In World War II England, ten-year-old Lottie is transported via a portal to present day Wisconsin, where she must find her way back to her family and her best friend, Kitty.

When Jonah and Katherine travel to early 1900s Switzerland and Serbia to return Albert Einstein's daughter, Lieserl, to history, her mother Mileva grasps entirely too much about time travel and has no intention of letting her daughter go.

While sinister Lord Luxon makes himself at home in twenty-first century Manhattan, Peter and Kate, aided by Gideon, pursue The Tar Man through the streets of eighteenth-century London, when history is at its tipping point.

Their magic tree house takes Jack and Annie back to the Wild West, where they experience excitement and danger and try to solve a riddle.

Blendin Blandin is searching for the legendary Time Pirates' Treasure, and he needs Dipper and Mabel's help... and yours, too! Journey through time and explore the dragon-infested medieval era, the Weird-and-Wild West, and the laser-and-giant-baby-filled future. YOU choose from multiple paths that lead to different wacky adventures! You might end up finding the greatest treasure ever known, or you could send the twins and Blendin into an abyss from...

When Dante, a Master of Time, is sent into the past to find Zo, Tony, and V, Abby knows that he will need her help to prevent the trio from destroying time itself, but soon things start to change as Zo targets Abby's past.

Elliott Harkness thinks he has it all figured out. He's (sort of) in control of his powers and finally living the superhero life. But after a not-so-heroic encounter with a time-traveling crook, Elliott wakes up one morning to discover everyone in his life is gone--and he might be next. Elliott realizes the time-trotting troublemaker has traveled into the past and changed everything. In order to fix his reality, Elliott must follow him.

Eleven-year-old twins Jason and Julia, along with their friend Rick, search eighteenth-century Venice for Peter Dedalus, the elusive inventor who created Kilmore Cove's Mirror House.

It has been six months since the inexplicable passage to Zarahemla disintegrated and disappeared. Kerra and Brock McConnell have been reunited with their long lost father, but an emptiness remains in Kerra's heart as she watches her courageous Nephite warrior, Kiddoni, fade away in a vortex of time, possibly forever. ... In the tumult of their adventure, Kerra and Brock soon find themselves in league with familiar friends from other Chris Heimerdinger...