An ear-splitting noise of slicing was heard coming with the old man, loud and echoing in the emptied and spacious hall.
Six dark swords were seen spinning slowly in a circle behind the old man, forming a perfectly round circle of swords. Invisible sword energies were shooting out from these swords, scratching on the pitch-black floor of the hall and producing a large amount of sparks. As the old man kept striding forward, fire sparks kept bursting behind him. The noise was so loud and jarring that it made those who heard it feel pain in their ears, and make their head spin.
