Dog Days (Diary of a Wimpy Kid, Book 4) (Volume 4);

It€s summer vacation, the weather€s great, and all the kids are having fun outside. So where€s Greg Heffley? Inside his house, playing video games with the shades drawn.
 
Greg, a self-confessed €œindoor person,€ is living out his ultimate summer fantasy: no responsibilities and no rules. But Greg€s mom has a different vision for an ideal summer . . . one packed with outdoor activities and €œfamily togetherness.€
 
Whose vision will win out? Or will a new addition to the Heffley family change everything?