Such a massive force, dying silently after the passing of the night? The key point is that not a single person resting in the camp noticed, one can imagine how formidable the attacker must have been, preventing even the guards from uttering a cry for help or a roar.
"More than a dozen Dominators have fallen, could it possibly be the work of a Sanctuary Powerhouse? Could the Sect Leader of the Heavenly Sword Sect have returned for revenge after recovering from his injuries? I have long known that the Heavenly Sword Sect has a profound foundation, the remaining five major sects are done for now."
"Something's not right, there were more than a hundred casualties, and it involved the five major sects. The reason why no attacks were made on our camp yesterday must have been a warning to all major sects. The next attack will likely see everyone end up like the guards."