Coke McDonald and his twin sister, Pepsi, are about to turn 13 and have the entire summer ahead of them. Unfortunately, their plans are filled with what promises to be the most nightmarish of situations --- a cross-country RV road trip with their parents. Since Dr. McDonald loves history and Mrs. McDonald adores strange and interesting facts that most normal people would never want to know about, Coke and Pep are facing a summer of boring museums and visits to places like the world's largest ball of twine. But being bored turns out to be the least of their problems. Unbeknownst to them, Coke and Pep have been recruited for a new top-secret organization that enlists the help of young geniuses to solve the world's problems. Unfortunately, this …show more content…
Surely they will find safety on their road trip, and whoever is after them will fade away. But the bad guys are very persistent and follow them across the country. Someone starts leaving them cryptic messages that they grapple to decipher, hoping for help and advice in their mission. Every mile of the 3,000-mile trip across the country promises even more danger as Coke and Pep struggle to survive, attempt to keep the truth from their parents, and endure the side trips to places like the National Yo-Yo Museum. Author Dan Gutman offers a cross-country adventure filled with all sorts of cool and interesting tidbits (all the places he writes about are real). He also encourages readers to participate by studying maps, getting directions, looking up facts, and solving the coded messages left for the twins (and extra messages written in the margins). Coke and Pepsi (it's explained how they got their unusual names in the first chapter) are smart and resourceful, dedicated to each other, and willing to do whatever it takes to survive. But one of the best parts of the book is the comedy; Gutman has a wonderful sense of humor that never lets up. MISSION UNSTOPPABLE is wildly exciting, explosively energetic, hysterically hilarious and contagiously fun. I'm already looking forward to the