From Mirror, Mirror:
"In that state of half-sleep, he had seen the girl steepping toward a cliff edge. Though he tried to cry out - with the persistent laryngitis that afflicted him in dreams - was feeble."
Is this saying that he has laryngitis in his dream so he couldn't cry out loud?
"Eschewing the golden raiment of some princes, he entered his conquered cities dressed in black, escorted by a retinue of a hundred black-clad soldiers."
What does it mean by "eschewing the golden raiment of some princes"?
You know how sometimes you have nightmares where you try to call out but no sound comes out? (Well, maybe you personally don't, but it's a very common dream.) That's what the author is referring to; the protagonist doesn't necessarily dream that he has laryngitis, but it's used as a kind of metaphor. It's probably the most elegant way of expressing it.
"Eschew" means "avoid"; here, it's used to mean "deliberately choose not to use". "Raiment" is an old-fashioned word for "clothes".