Like the surface of the sea was the mirror of Tuzun Thune; hard as the sea in the sun's slanting beams, in the darkness of the stars, where no eye can pierce her deeps; vast and mystic as the sea when the sun smites her in such way that the watcher's breath is caught at the glimpse of tremendous abysses. So was the mirror in which Kull gazed.

"The Mirrors of Tuzun Thune" (1929)