Firefly Song

Lynn Frierson Faust and the Great Smoky Mountain Discovery

by Colleen Paeff
illustrated by Ji-Hyuk Kim

Review posted September 16, 2025.
Margaret K. McElderry Books, 2025. 40 pages.
Review written September 16, 2025, from a library book.
Starred Review

Firefly Song stands out among picture book biographies for several reasons, the first being that it's got gorgeous art. I love the picture of the twilight forest dotted with fireflies and the picture of young Lynn Faust jumping into a Great Smoky Mountains swimming hole.

But it's also wonderful because of the story it tells. Lynn Frierson Faust essentially trained herself as a scientist. As a child, she enjoyed the dazzling display of the synchronous fireflies at her family's summer cabin.

When she tried to find out more about fireflies (because those were so wonderful), she discovered that scientists believed there were no synchronous fireflies in North America.

But how to let the scientists know they are wrong? She was met with plenty of skepticism.

It took her years of work and plenty of research to get other scientists to come and confirm what she'd realized all along - that a species of synchronous fireflies lives in the Great Smoky Mountains.

The fireflies of Elkmont and their light show are famous now. Each summer, thousands of visitors travel from clear across the world to witness the silent serenade of Photinus carolinus.

There's nice back matter for those who are intrigued as I was and want to find out more.