Plotinus has one section of his basic writings on Evil. He was highly religious yet pre-Christian. You might say his Platonism would be Pagan, and it was, but he was very thorough and can hardly be beat even by Aquinas.
Once again, your range of info astounds my humbled mind.
Thanks for the heads up on Plotinus...terrific stuff. I can see where you made the Plotinus- Aquinas connection. Plotinus thinks with all the rigor of full bore Jesuit minus the Jesus.