A boy goes on a long car ride to visit his grandmother and discovers time moves faster or slower depending on how bored he is--

Even though she is suffering from memory loss and hallucinations, Rylie must unravel her family's secrets in order to save herself and find her missing friend.

Sixteen-year-old Winnie, who can see alternate realities, finds herself transported to one and must now find her way back to save the man she loves.

"All it takes is one hit on the football field, and suddenly Ash's life doesn't look quite the way he remembers it. Impossible though it seems, he's been hit into another dimension--and keeps on bouncing through worlds that are almost-but-not-really his own. The changes start small, but they quickly spiral out of control as Ash slides into universes where he has everything he's ever wanted, universes where society is stuck in the past...universes...

When a spaceship lands in the small town of Vern Hollow in 1956, juvenile delinquent Jack Creedle and prim, studious Isadora Shumway form an unexpected alliance as they try to keep a group of extraterrestrials from stealing eccentric Uncle Bud's space travel machine.

Patrick, Beth and Eugene are in an exotic rain forest in their latest adventure.

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.

Jarvey, a twelve-year-old British boy, becomes lost again within the pages of the Grimoire, a powerful book of spells, where he must navigate complex worlds and battle new and more evil Midions.

Thirteen-year-old Jadie lives in 4-space and works as an Agent for the four-dimensional beings who adopted her after being abandoned as an infant, but when Jadie learns her origin story is a lie she works to uncover the truth.

The Coopers become involved in a murder mystery that finds them caught between the present and the past, following clues that are carved in the stone cliffs around a ghost town.