Seven-year-old Billy finally understands why his brother Bobby can't swing on the swings, slide on the slide, or play soccer with his friends. Bobby was born with a disease that makes his body weak, and he is feeling sad and sick. One night, Billy thinks of a way to help Bobby be just a little happier. After everyone has gone to sleep, Billy sneaks into Bobby's room and leaves him Perriwinkle the Pig, a very special stuffed animal. During Bobby's dreams, Perri takes him to the farm where they play in the mud, make mud pies, and throw mud balls. Each night, Billy delivers a different animal. Henrietta the Hen shares her special pancakes. Bernard the Bear takes Bobby on a blueberry-eating excursion. Frederick the Frog shows Bobby the lily pads and how to catch flies. Even though Bobby's body continues to weaken, Bobby has enjoyed the adventures he never dreamed he could have. A story of love and hope for a happier existence beyond the pain, "Why Isn't Bobby Like Me, Mom?" helps siblings understand both the illness and the loss of a loved one.