School's out for the summer, but Greg Heffley's dreams of air conditioning and video games vanish in the first page of this latest installment in the iconic series. This time, Greg's overexcited mother shepherds Greg, his reluctant father, and his two brothers into an overstuffed minivan for the road trip to end all road trips. What starts as picture-perfect family fun soon turns into a comedy of errors involving, among other things, car trouble, rival road-trippers, and a pig. Long-suffering Greg has plenty of new material with this Choose Your Own Adventure style of vacation ("The problem is, I never seem to make the choices that get me to a happy ending"), and, as always, his angst will be easily relatable to his audience. Once again, the dry, deprecating tone of the text and the cartoonish illustrations will provide endless entertainment for newcomers and devoted series fans alike. HIGH-DEMAND BACKSTORY: Demand for this best-selling series has only risen over the course of eight books, and with three movies out and a television special on the way, it shows no signs of letting up soon.