Ernie Flathead, a figure with years of extensive experience in the underground construction, was the manager of numerous coal mines in the Great Underground Empire, most notably Coal Mine #502, located close to the Great Underground Highway #2, near Egreth. He most likely lived during the reign of King Duncanthrax in the seventh century GUE.

Flathead insisted that the Griffspotter Caverns were entirely in origin. As evidence, he cited, “the weird way the tunnels branch so evenly.” In other words, he found it odd that the passage descended into the earth in the uniform binary pattern. When asked whether any combination of natural forces could be responsible for that sort of underground formation, Flathead replied: “No way, man."

SOURCE(S): Sorcerer, A History of Quendor