Personally I think the book is not so interesting with one adventure they should have more than one adventure because the reader will not want to read it anymore. In my opinion I think the book is boring.

In my opinion this book is boring. It should have more adventure and action. Also I think this book is a bad influence for young children. Mostly because they are showing in the text that peer pressure is good. These are my thought about the book,"The War With Grandpa."

I love this book!!!! It is filled with adventure and action. Roald Dahl almost made my mouth water when he described Mr.Wonka's chocolate. I recommend this book to anyone who loves adventure.... and excitement

This book was great! It will keep you wanting to read more!

personally I don't like this book it does not have more than one adventure it does not have anything to do about the little sister and the parents too.

This book is one of the best Geronimo Stliton books ever it shows how much adventures that he went on like the giants the mermaids the gnomes and the pixies. It is a very good book and it is full of humor.