The award-winning children's classic - now a major film

Peter was so excited that Grandpa was coming to live with his family - but he hadn't expected Grandpa to take his room...

Peter loves his Grandpa, but now he feels he has only one choice: to declare war! With the help of his friends, Peter devises outrageous plans to make Grandpa surrender the room. But Grandpa is tougher than he looks. Rather than give in, Grandpa plans to get even.

They used to be such great pals. Has their war gone too far?



Award-winning author Robert Kimmel Smith has written several popular books for children, including Chocolate Fever, The War with Grandpa, Bobby Baseball, Jelly Bell, Mostly Michael, and The Squeaky Wheel. He lives in Brooklyn, New York.