When six-year old Nathan goes to visit his grandparents in the country, he wants to know what his father was like as a six-year-old boy. Nana and Poppy tell him how his father loved collecting fireflies in the dark. Nathan wants to do that, too, so the three sit outside with a jar and wait for darkness to fall. Night comes slowly in the summer, but when it finally does, the air is filled with the tiny, flickering lights of the fireflies, and Nathan is able to gather them into the jar, just like his daddy did all those years ago. The illustrations, realistic yet richly colored and evocative of summer nights, add to the gentleness conveyed by the recounting of this small but meaningful incident. Also nice is that while Nathan and his grandparents are African-American, the text is universal. A lyrical story that captures the feeling of childhood summers.