With that time, it would be better to inspect your own territory more.
The Dragon Oak Mother Tree is divided into two parts: the upper and the lower.
The upper part is everything above the branches.
The lower part is what used to be the root system. During a state of war, the soil beneath it was forcefully brought up tens of meters, becoming part of its body.
Not only was the Dragon Oak Dragon Nest perfectly preserved, but most of the Dark Domain remained intact as well, though many areas were twisted and displaced. What used to be passageways on a single plane turned into levels upon levels.
The reason for this was simple.
Even with substantial reduction, the sheer size of the Dragon Oak Mother Tree is still impressive. To maintain balance, the lower half must be sufficiently bloated and heavy.
Otherwise, with one lift of its leg, it would topple over.
The upper half naturally belongs to the Fae Race.