If you have kids that have enjoyed reading the 4 Captain Underpants books before, they will surely love the gags in this book. Although it's not an epic tale like the previous chapter books, it is full of the typical "potty humor" that is classic Pilkey. Some of the jokes are a bit over the top (or should I say "in the sewer"?), but if you don't mind that, your kids will surely have fun doing all the activies, especially the mad-lib fill-in-the-blanks story. Just be warned, it might keep kids up half the night laughing if they read it for their bedtime story time. Or worse, they might need to change their pajamas if they laugh as hard as mine did!