Authors:

I imagine the center of the Earth must be a crowded place by now, but perhaps it is the spirits of those of us residing there that keep the Earth alive and green.

Neal Shusterman (2011). “Neal Shusterman's Skinjacker Trilogy: Everlost; Everwild; Everfound”, p.31, Simon and Schuster
I imagine the center of the Earth must be a crowded place by now, but perhaps it is the spirits of those of us residing there that keep the Earth alive and green.