Selena was unwilling to say more, and Noah didn't ask further. This was forbidden knowledge, so rare that even the Ancestor Dragon's lineage contains only a few words about it, indicating that even the Ancestor Dragon could not access this level.
Noah's attention turned to the Void Crystal in front of him, a precious treasure used for creating a half-plane, capable of serving as the foundation for a nation or even a race's heritage.
"Where do you plan to establish the half-plane?"
This was a query from his foster mother, and Noah chose the anchor point for the half-plane in the Elidis Mountains, with the entrance and exit located in the palace on the main peak of the mountains.
Noah's reasoning was that if any issues arose within the half-plane, the mountains, not the city, would suffer first. This arrangement could minimize losses.
In reality, Noah simply wished to decouple the Dragon Domain half-plane from Mage City.