After the destruction of the former Abnormal Beast Dungeon, the attached space didn't collapse along with the Underground City but instead was embedded directly into the main world once the Underground City space collapsed.
Divine Wood has special means and knew there was an attached space here, so it gave the coordinates and transfer method as hush money to Lin Jun.
However, whether it clearly understands the exact status of the attached space now is difficult to say.
Over a hundred years, the merging of this attached space with the world's body has never ceased.
The initially needle-point-sized contact point, under the influence of time, has expanded into a large merged area.
