What is dark reign?

Famous quotes containing the words reign and/or dark:

“The reign of imagagology begins where history ends.”
—Milan Kundera (b. 1929)

“We were soon in the smooth water of the Quakish Lake,... and we had our first, but a partial view of Ktaadn, its summit veiled in clouds, like a dark isthmus in that quarter, connecting the heavens with the earth.”
—Henry David Thoreau (1817–1862)