Siblings Grant and Christina journey with their grandparents, Mimi and Papa, to Charleston, South Carolina, to search for their long lost Aunt Lulu and learn about the Civil War at Fort Sumter, but uncover a mystery involving a rare winter blizzard.
Christina, Grant, and a couple of new friends learn a lot about astronauts and the history of the space program as they try to figure out who stole a valuable moon rock from Space Center Houston.
Grant and Christina can't wait to visit Colonial Williamsburg with their mystery-writing grandmother Mimi and cowboy-pilot grandfather Papa. 'It feels like you are whisked back in time when you go to Williamsburg!' says Mimi. And as soon as the kids arrive, they're whisked into a quirky colonial mystery involving a valuable--and missing--map!.
During summer break, Christina, Grant, and their two friends Zac and Alex go to Alaska with Mimi and Papa. Mimi inherited a gold mine so they all learn about the Gold Rush era and Forty-Niners.
An emergency landing puts Mimi, Papa, Christina, and Grant in the middle of a mystery involving the deadly Diamond Shoals off the coast of North Carolina and shipwrecks.
"It was the 100th anniversary of the founding of the Pennsylvania town of Hershey-home of the world-famous Hershey Chocolate Factory! Christina, Grant, Mimi and Papa visit the Sweetest Place on Earth one cold February week to do research for Mimi's new mystery book.
The constitution in jeopardy is the real U.S. Constitution! Is it lost? Stolen? Fake? Real? Christina, Grand, and their new red, white, and blue friends follow the Constitution from its historic birth to its possible demise.
