Wolfman and Ordway follow up the Qurac storyline begun before the Legends crossover, and introduce some new villains in Adventures of Superman 427 (April 1987).
As Superman faces off against the Quraci army and leader (who looks a lot like Saddam Hussein), we discover that there are others in this country as well, some strange looking people who call themselves the Circle.
They are mutants, and suspect that Superman is one of them. Prana demonstrates some impressive mind control, taking over Superman’s dreams in order to try to recruit him.
But Superman is able to withstand this assault, which expends so much of Prana’s energy that they die. And Superman is now, to some degree, aware of the existence of the Circle, who will return in a couple of issues.