Venturing Alone

"This…" Sword Saint Xing fell silent.

He found his son's conjecture to be very plausible too.

If the Otherworldly Demonic Tribe truly wanted to take down mankind, there was no reason for them to disperse their forces across 108 Subterranean Galleries. The dispersion of forces would make it much more troublesome for mankind to cope with their assault, but it would hinder them from launching a decisive assault either. 

It would have been much more efficient if they had just focused their forces on a couple of Subterranean Galleries. Had they resorted to concentrated, surprise attacks on a couple of the more loosely guarded Subterranean Galleries, their chances of success would have been much higher.