For some time he decided to investigate that place. But in the end even after observing carefully he did not find anything. He just cannot recognise this place and he also wasn't sure if he was inside the world tower or not. As you know, even on the 4th floor he did not completely explore that floor and because of this he wasn't sure if this place was on the 4th floor or not.
But the most interesting thing was that the barrier that surrounded this place from the outside and because of this he was also unable to see outside. He already tried to attack that barrier but unfortunately nothing happened to that barrier. So it was completely useless to attack that barrier.
In the end he decided to leave the place because he won't be able to find anything in this place and most likely those people outside of the portal also worried about him. So in the end he decided to leave this place.
