Originally published in Harlan Ellison's classic anthology, Dangerous Visions, here is Lester del Rey's famous contribution, "Evensong."

By the time he reached the surface of the little planet, even the dregs of his power were drained. Now he rested, drawing reluctant strength slowly from the yellow sun that shone on the greensward around him. His senses were dim with an ultimate fatigue, but the fear he had learned from the Usurpers drove them outward, seeking a further hint of sanctuary.

It was a peaceful world, he realized, and the fear thickened in him at the discovery. In his younger days, he had cherished a multitude of worlds where the game of life's ebb and flow could be played to the hilt. It had been a lusty universe to roam then. But the Usurpers could brook no rivals to their own outreaching lust. The very peace and order here meant that this world had once been theirs.</p>