Firstly, Nova used his Space Law to clear the surrounding space. This allowed him and Fiona to get a better view of what was after.
The Space was a bit blurry, but their eyesight was still considered pretty good, 'Nova, let's get closer to the entrance.'
Nova nodded at Fiona, he got closer to the Dungeon entrance and saw that it was different from anything he thought about it.
It was a pitch black hole of energy, it looked very menacing up close, and if one had fear of the unknown, it would surely be a red flag.
But Nova being Nova directly ignored that red flag and touched the pitch black hole.
As soon as his fingers connected with the black hole, he was directly sucked inside.
The surrounding space mended by itself, and surprisingly enough, everything around disappeared.
There weren't any more abnormalities or space malformations to be seen, almost like the Dungeon completely dissipated into thin air...