In the beginning, Peter gets news that his grandpa is moving into his house because Grandma died and he is lonely without her. Jenny has a secret about where Grandpa is sleeping. Then Peter gets moved to the bad room in the attic.
Peter and his friends were playing Risk and one of his friends got an idea. Peter typed a Declaration of War to his grandpa. Peter demanded for his room back.
Peter and his friends were playing Monopoly when Grandpa made his first attack. It happened when he took the Monopoly pieces and wrote on a note, "Two can play at that game, but you can't play this game now!"
Another time, Peter's grand father hid Pete's stuff in different places. He did things like, he went into the bathroom and took Pete's toothbrush. He told him to use his finger. He also hid his shoe laces in the closet, and hid his school books each in a different luggage bag. After that Pete took Grandpa's false teeth and hid them in tissue paper.
In the end Peter gets his room back and grandpa fixes the basement. On Peter's bedroom door it says: Pete's place The theme of this story is, the solution to a problem is not war.