I’m rereading Silver Flame right now. Chapter 3…
“ They sat in the High Lord’s study, illuminated by the light of green glass lamps and a heavy iron chandelier. The two-level atrium occupied the northern end of the business wing, as Feyre called it.
There was the main floor of the study—bedecked in the hand-knotted blue carpets that Feyre had gone to Cesere to select from its artisans—with its two sitting areas, Rhys’s desk, and twin long tables near the bookshelves. At the far end of the room, a little dais led into a broad raised alcove flanked by more books—and in its center, a massive, working by model of their world,
the stars and planets around it, and some other fancy things that had been explained to Cassian once before he deemed them boring and proceeded to ignore them completely.
Az, of course, had been fascinated. Rhys had built the model himself centuries ago. It could not only track the sun, but also tell time, and it somehow allowed Rhys to ponder the existence of life beyond their own
world and other things Cassian had, again, instantly forgotten.”