In the foothills of the Great Smoky Mountains, a young boy enjoys the wonder of a hot, summer night catching fireflies. However, these are unique fireflies. It is the synchronous firefly. These special fireflies appear for a short period in the summer and communicate in a special way by flashing their hues of greens and yellows at the same time; performing a melodic dance through the mountain air. On the other side of the world, a young boy from Southeast Asia enjoys the same thrills of the fireflies on a hot, summer night, once again showing us that no matter where children might live, they all experience the joys of nature and the excitement of discovering the natural world. Woven throughout the book is also a lesson on this very special firefly; giving an easily understood science lesson to the child and parent.