Henry Huggins makes a deal with his father--if Henry can keep his dog Ribsy out of trouble for a month, he can go fishing with his father. Ribsy does his best to make Henry lose the deal.
Beezus' biggest problem was her 4 year old sister Ramona. Even though Beezus knew sisters were supposed to love each other, with a sister like Ramona, it seemed impossible.
Ramona's year in third grade is highlighted by the arrival of Howie's rich Uncle Hobart, a change in her after-school situation, a surprise wedding, a death and a new arrival in the family, and her father's getting a job.