In the fall of 1066, a thirteen-year-old Anglo-Saxon girl named Catla watches from afar as Viking raiders burn her village and imprison her family and the other villagers. No one sees her as she flees toward Aigber, the closest village, praying the people there will help. Catla must ignore her terror as she makes her way to the standing stones, a place of refuge, where she meets Sven, an older boy from her village. Together, they continue toward Aigber and are able to alert the village of the coming peril. Catla and Sven rally the villagers of Aigber, and with Catla's help, a plan is put in place that will save both villages from the Nord-devils.
David and his family travel back in time to California in 1849 to experience the ups and downs of prospecting for gold.
David and his family travel back in time to San Antonio, Texas in 1836 and meet such brave defenders of the Alamo as Davy Crockett.
When Kioni is captured and taken aboard a pirate ship, he finds adventures on new shores.
While on a field trip to study native plants, Kenneth and Aleesa are transported to Hawaii in the 1890s, where they see first-hand the final days of the reign of Queen Liliuokalani and learn about native rights.
David travels back in time to 1906 San Francisco to try to save the lives of Antonio Giovanni and his family who were victims of the devastating earthquake.
Long, long ago, Johnny's grandpa found a bottle on the beach. When Johnny roots it out of the back of Grandpa's closet, he can see a mysterious shadow through the green glass. "We should break it," Johnny says. "Maybe later," says his grandpa. And so the story begins.