“Is it possible for fallen angels to repent?”
In C.S. Lewis’s Narnia stories, Aslan never tells anyone any story but their own. When he walks with Edmund after his restoration, Lewis comments, “There is no need to tell you (and no one ever heard) what Aslan was saying.”
I’ve always thought those lines insightful. Scripture is silent about many things that inspire our curiosity, the status of spirit beings who “left their proper dwelling” among them.