"When a mysterious note invites them to Camelot, Jack and Annie travel in the magic tree house to the magical kingdom where they must find a lost dragon"--

When Corey learns that he has the ability to save lives while time traveling, he is determined to go back in time to save his grandmother who died on September 11, 2001.

Dak, Sera, and Riq fix the Great Breaks in history and prepare for the ultimate confrontation with the SQ.

"When inexplicable events begin to occur, Los Angeles native Alex Mata uses his special ability of time travel to save the world from alien invasion"--

"Musical prodigy Rosie stops playing the violin, upsetting her ambitious mother but making room in her life for new experiences, including a glitch in space-time that lets her meet her mom as a twelve-year-old"--

In Paris with his parents to sell family heirlooms, fourteen-year-old Greg Rich suddenly finds himself four hundred years in the past, and is aided by boys who will one day be known as "The Three Musketeers."

Children's birthdays are always strange in Willow Falls, but when Connor's little sister Grace falls into a frozen state on her tenth birthday, Amanda and Leo must travel back in time to find out what force prevented Angelina from casting the blessing that would have protected her.

When Jill, a competitive high school fencer, goes with her family on vacation to the Bahamas, she is magically transported to an early-eighteenth-century pirate ship in the middle of the ocean.

A class takes a field trip back through time to observe living dinosaurs in their natural habitat.

When Larissa Renaud starts receiving eerie phone calls on a disconnected phone in her family's shop, Bayou Bridge Antiques, she finds herself directed to the river bank near her house, where a cloud of fireflies take her on a journey through time to learn the secrets of her family's past--and save their future.