Title: Mission unstoppable
Description: 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.
Subjects: Assassins, Brothers and sisters, Adventure and adventurers, Family life, Fiction, Genius, Recreational vehicles, Twins, Families, Juvenile fiction, Adventure stories, Siblings, Children's fiction, Adventure and adventurers, fiction, Genius, fiction, Brothers and sisters, fiction, Twins, fiction, Transportation, automotive, fiction, Family life, fiction, Criminals, fiction, Automobiles, fiction, Siblings, fiction, nyt:paperback-books=2012-02-12, New York Times bestseller