"Welcome back, My Lord."
Nocturnal Phantom said those words as he kneeling right in front of Lucifer.
He has sensed that Lucifer was about to go back and assumed this position so that he would be able to greet him perfectly.
Grimmy had done the same thing, but he wasn't kneeling. There was no way that Grimmy would be able to kneel in his form right now as a demon incarnate, which was just flying in the air.
Of course, Nocturnal Phantom was not wrong about this as Lucifer indeed opened his eyes.
However, that was not the most important thing right now.
Why? It was because something was about to happen that would steal the attention of everyone present in this place.
And that was...dark fog. No, it was not Nocturnal Phantom.
In fact, this dark fog was blacker than Nocturnal Phantom and it was easy to see as it was just visible to the naked eye.