The thought of having a new baby in the house can cause a lot of sadness, worry and anxiety for children. Arabelle, the bat, has always had her parents' full attention. When mom and dad tell Arabelle the exciting news that she is becoming a big sister, Arabelle gets very upset. Like many children about to become a big brother or sister, Arabelle feels she won't be special anymore or have the one-on-one time she has been accustomed to with her parents. Arabelle quickly learns that there is more than enough love to go around and is pleasantly surprised when the new baby arrives.