Ever since McDuff moved in to Fred and Lucy's house, he has been happy every day in every way. Then the baby arrives. Now Fred has no time to read the comics to McDuff in the morning. Lucy is too busy to take McDuff on afternoon walks through the woods. The baby even wakes them up in the middle of the night, and pulls on McDuff beard! Eventually, though, McDuff and the baby come to terms in the third book featuring the irresistible Westie, McDuff.