Diary of a Wimpy Kid: The Long Haul” is a young adult novel by Jeff Kinney which recounts the misadventure-prone summer road trip of Greg Heffley and his family. “The Long Haul” is the ninth installment in Kinney’s “Wimpy Kid” series. When the novel begins, summer vacation has just gotten underway. Greg looks forward to a long summer of relaxing and doing nothing important. But his mother, Sue, after reading an article about family vacations in Family Frolic Magazine, decides the family will go on such a vacatio