Who are these strange guys? Just an alien race. Once they come to Earth, it was approximately in the late twentieth century; they take control of the planet. Their aim is a good one. They want to destroy a lot of disease, wars, and discord among people. They want to build and create a world which is very close to the utopia. Karellen oversees this peaceful mission. Also, interesting detail – from a physical point of view an average Overlord is much taller and stronger than a human. They have large wings, horns on the head, and a barbed tail.
The Overlords in the Essays