James and Eamon spend a week with Bill and Pam, Eamon’s grandparents, while they take in a week of nature camp—a week that turns out to be “the best week ever.” A deadpan text narrates the events of the week, from the obligatory nature hikes and sleeping on an inflatable mattress downstairs to Bill’s well-meaning attempts to engage them in wildlife study and Pam’s great cooking. Frazee’s hilarious round-headed cartoons romp across the page in snort-inducing counterpoint, abetted by the occasional speech balloon (“I think it should be called Sit-Around-Camp.”). What emerges is a complete portrait of two thoroughly modern boys who watch TV, get messy, resist both nature and self-improvement—and still get won over by the spell of the great outdoors. The genius here is not that the boys finally get outside in the end; it’s that their joy in being together is celebrated equally whether they’re annihilating each other in a video game or building a replica of Antarctica on Bill and Pam’s dock. As respectful of kid sensibilities and priorities as it’s possible for an adult to achieve. (Picture book. 5-8)