"When dragons run out of tacos, they travel back in time to get a fresh supply"--

Stosh travels back to 1969 to try to prevent the untimely death of Roberto Clemente, a legendary baseball player and humanitarian, but upon his return to the present, he meets his own great-grandson who takes him into the future, and what he finds there is more shocking than anything he has encountered in his travels to the past.

Traveling to 1896 Paris, Geronimo and his friends try to stop the Pirate Cats from stealing the first cinematograph, an invention that ushered in the age of motion pictures.

"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"--

As battle-scarred Jamie Fraser and his twentieth-century time-travelling wife Claire Randall flee from North Carolina to the high seas during the American Revolution, they encounter privateers and ocean battles. Meanwhile in the relative safety of the 20th century Brianna (Claire and Jamie's daughter) and Roger MacKenzie, Brianna's husband, search for clues not only to Claire's fate--but to their own fate in the Highlands.

When eight-year-old Jack and his seven-year-old sister, Annie, join a group of nineteenth-century explorers aboard the H.M.S. Challenger, they learn about the ocean, solve the mystery of its fabled sea monster, and gain compassion for their fellow creatures.

With his ability to travel through time using vintage baseball cards, Joe takes Flip with him to find out whether Satchel Paige really was the fastest pitcher ever.

Dora and Diego travel back to the dinosaur age where they help a lost dinosaur get back to her family.

Jack and Annie travel back to nineteenth-century Ireland to inspire a young Augusta Gregory to share her love of Irish legends and folktales with the world.

Using their magic tree house, Jack and Annie travel back to the time of the American Revolution and help General George Washington during his famous crossing of the Delaware River.