As the door opened, Arad found himself walking into a large marble castle made from quartz, pearls and carved opal. The half-angels' architecture was both beautiful and strange, resembling a mix of old Roman structures and Mesopotamian building style with countless temples, walled gardens, and towers.
The floor was slightly cold, and sunlight seeped through the massive windows and balconies, giving the whole city and castle a clean, vibrant look. All of that whiteness was contrasted by countless green plants and gardens that were dotted everywhere, decorating the kingdom.
Arad could see a massive golden pillar in the distance that was one of Merlin's labyrinths. It bathed the whole place with faint golden light, making it seem like a holy beacon of sorts.
"Beautiful, isn't it?" Lucifer smiled and approached Arad, standing beside him.