But as grandpa dug through that forest floor, I became fascinated with the roots, and under that, what I learned later was the white mycelium and under that the red and yellow mineral horizons.
Ma mentre il nonno scavava  attraverso quel suolo forestale, rimasi affascinata dalle radici e, al di sotto, dal micelio bianco, e, ancora al di sotto,  dagli orizzonti minerali giallo e rosso.