The Genius Files series by Dan Gutman has the combination of action and humor that appeals to a 9-12 year-old student. Coke and Pepsi McDonald are part of a secret government program which means they are a target for several criminals. The McDonalds are on a family trip across the U. S. in an RV. The 13-year-old twins have to manage the life and death battles alongside the typical conflicts of a family road trip.
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