The Witchfire Trilogy
The elves of Ios are reclusive, secretive, and downright xenophobic. Those who approach Ios without being invited do not return. In recent years the elves have closed themselves off entirely to the outside world and no longer even conduct furtive trade with other nations. Those few elves found outside Ios are generally exiles no longer welcome in their homeland, and even these outsiders are close-lipped about their nation. Some say Iosans are masters of strange mechanika and magic and their cities are built around the temples of living gods as old as the world itself. No one can or will confirm any of it. Scyrah is the only goddess mentioned by exiles, and questions about her nature are rebuffed.