Dan Gutman

On a cross-country vacation with their parents, twins Coke and Pepsi, soon to be thirteen, fend off strange assassins as they try to come to terms with their being part of a top-secret government organization known as The Genius Files.

As their cross-country journey with their parents continues through the midwest, twins Coke and Pepsi, now thirteen, again face strange assassins at such places as the first McDonald's restaurant and Cedar Point amusement park.

A skateboarding principal offers unusual incentives to his students to motivate them to learn more.

Mrs. Cooney, the school nurse, is so beautiful that A.J. has a crush on her--even though he suspects she might be an international spy!

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.

"Coke and Pepsi McDonald continue on their dangerous cross-county road trip, stopping at strange-but-real destinations in the South and facing such perils as an evil Elvis impersonator, a vat of acidic soda, and a giant recycling shredder"--

A new football coach arrives at school and, with help from an unexpected new team member, the Moose win a game.

When summer vacation is interrupted by a tropical storm, Andrea and A.J. are sent to a camp in order to prepare them for school, but once they rally the other Ella Mentry school students, they have an ending to the summer they will never forget.

The new music teacher must try to teach A.J. and the rest of his class to play well enough during their recital to impress crabby Dr. Carbles.

On Career Day at Ella Mentry School, local reporter Mrs. Lilly helps A.J. and his fellow third-graders start a school newspaper, but their efforts have unexpected, and terrible, consequences.