King Coal (book); a 1917 novel by Upton Sinclair.
King Coal (film); a 1977 film produced in India.
Then oil, with a lower carbon content still, dethroned King Coal in the 1960's.
King Coal largely died off in the 50's with the loss of tens of thousands of mining jobs.
Geography in the news: What killed King Coal?
He wrote a book, King Coal, about miners in Britain (1981) and another, Nuclear Power, in 1984.
"King Coal" has been dethroned because the market for British coal has declined.
After arriving in the Pit they fight King Coal's men, who were already taken down by Knight.
Outside, King Coal sets off explosions that cause the cave to implode around everyone.
It was a kind of public dethroning of King Coal.