Mission unstoppable Gutman, Dan creator text New York Scholastic 2011 First Scholastic printing, September 2011 monographic 285 pages : illustrations ; 19 cm 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. P 730 Lexile P Raz-Plus Dan Gutman PZ7.G9846 813.6 9780545390224 FISKH 20231211110742.0 2468 eng