Children often feel anxious during a thunderstorm because they are very sensitive to loud noises and because they don’t understand what is happening. This book was written to help comfort children during a storm. It is a story about William, a boy who begins to feel worried as he sees a storm approaching. When the storm gets close, he gets very scared and ducks under the covers. William is comforted by his father, who sits with him and provides a simple explanation of thunder and lightning. This helps William feel safe and secure, and he is then able to fall asleep.