" This chamber held a mystery for the early explorers who entered its confines, a mystery that has baffled people for decades. The chamber was coated with a layer of black dust, which, upon analysis, turned out to be exuviae, or the cast-off shells and skins of insects. There were no living insects found in the Great Pyramid, which made this discovery even more mysterious. What prompted hordes of insects to single out this one sealed chamber and shed their skins? It is a mystery that has never been satisfactorily explained. In fact, there has not been any attempt to explain it, and because there is no logical answer that fits in with any previously proposed theory, no one has given it much attention. "

― Christopher Dunn , The Giza Power Plant: Technologies of Ancient Egypt