Reviewed by Colvin R. (age 9)
My favorite part is when they hypnotize their principal, Mr. Krupp. When they snap their fingers, their principal turns into Captain Underpants.
My favorite character is Melvin Sneedly. He is funny because he sneezes and leaves it on his hand.
I like the book because George and Harold hypnotize their principal. I also like when Mr. Krupp is Captain Underpants. He just fools around and makes things worse.
I suggest this book to second to sixth graders. I recommend this book to people who like superheroes.