Geronimo Stilton recounts his trip to Niagara Falls when he accompanies some young mice there as part of a school field trip.

In this final book in the series, the seventh graders of McQuarrie Middle School and their Star Wars-inspired Origami finger puppets go on a field trip to Washington, D.C., on what proves to be a very long trip full of shifting alliances, betrayals, carsickness, and sugar rushes.

It is field trip day to the city museum, and while Stewart expects a boring day of facts and learning, Waldo and Sassy are looking forward to lunch; then they find that the dinosaur room is full of tempting bones, the astronaut boots are good for chewing, and one of the dioramas features a squirrel on a sidewalk, but the highlight is the delicatessen--if only Waldo and Sassy's disguise can fool the guards who are searching for two dogs.

Sixth graders Tony and Elizabeth are taking a field trip with their class to the World Trade Center, but when terrorists hijack and fly airplanes into the Twin Towers, they will need to work together in order to survive one of the most horrific attacks on United States soil.