At an isolated island where no trees were in sight, where no animals were roaming, stood a giant door at the center. The door was made out of worn woods. It had aged with time and grown weary. Nobody knew the origin of the door and the knowledge regarding the place was lost.
This had sparked the Mortal World's curiosity. Many cultivators believed that beyond the door was a place full of treasures. Priceless and unreachable. For the past uncountable years, only a few cultivators had come out from the expedition but none of them did reach the very end of the place.
However, they came back empty-handed. Garuda even fell into a coma until recently. Many then started to doubt the legend surrounding the door.
The strong expert cultivators that were meditating and went to a prolonged meditation to reach the next breakthrough didn't bother to inspect it. The risk and the reward were too uncertain, thus they were too afraid to be rash.