The Long Haul (Diary of a Wimpy Kid 9) by Jeff Kinney

The Diary of Wimpy Kid series of books, by best-selling author Jeff Kinney, charts the highs and lows of our middle school hero, Greg, as he stumbles and fumbles from childhood to teenhood via school-hood. Sometimes helped by his friends and family, often not helped by himself! A family road trip is supposed to be a lot of fun . . . unless, of course, you're the Heffleys. The journey starts off full of promise, then quickly takes several wrong turns. Gas station bathrooms, crazed seagulls, a fender bender, and a runaway pig—not exactly Greg Heffley's idea of a good time. But even the worst road trip can turn into an adventure—and this is one the Heffleys won't soon forget.