Two bear cubs, Aurora Mae and Borealis Burl, are amazed and delighted when the night forest erupts in color due to the northern lights and the efforts of fireflies.
Jackie can't run and skate and throw as well as the other children, but his clumsiness eventually saves the villagers from a winter that would not end.
Presents interesting facts about fireflies, such as how they are able to glow, and provides additional information about their appearance, growth stages, molting, mating, babies, and varieties.
When Chester asks his mother about the tiny lights he sees in the tall grass one summer, she teaches him the firefly song, which he keeps singing even in the fall, after the fireflies are gone.
The author describes his trip to a river in Malaysia at the age of fifteen to observe fireflies with his stepfather, world-renowned firefly expert, Professor James F. Case, and discusses certain characteristics of fireflies and how scientists study them.