As the twins' birth nears, the children want to bless Mom, and their surprising idea for how to do that is a huge success. In the midst of waiting for the twins, a pet-sitting job is unexpectedly given to them and brings its own excitement. There is incredible joy when the Moody twins arrive! Mr. Delome, the neighbor across the street, continues to be part of the Moodys' lives along with other familiar characters from the first three books.