The evil spirit continued in the same direction when it sensed their actions. It produced a strange laughter and directly charged towards the region with the fewest people. The weakest among them were Sainthood experts, so their life force was many times greater than ordinary people. The evil spirit would be able to recover quite a lot if it devoured them.“Oh no, it’s heading towards us. Everyone be alert. We must use our full power, or we won’t even be able to last a second,” a Saint Emperor said grimly among the Sainthood experts. Without any hesitation, he immediately poured his full power into his formation to face the evil spirit that was charging towards them.Four old men that wielded metal swords hovered towards the back of the group. They were also extremely stern as they radiated with a surging sword intent.“Sword Formation of Slaughter!” One of the old men called out. Before he had even finished talking, the four of them stood in a sword formation with extremely fluid movements. They radiated with a supreme sword intent. The four of them were clearly only Saint Emperors, yet even Receival experts would feel an extremely great sense of threat from their sword formation.“Slaughter!” The four old men called out loudly. Their voices reverberated through the surroundings and an extremely powerful sword intent immediately expanded. The four old men shone with a resplendent light and moved together. They charged towards the red mist like a huge divine sword.The four old men were A’Da and his brothers.Although their sword formations could threaten the Origin realm and even kill Receival experts, the attack was clearly not enough to catch the evil spirit’s eyes. The evil spirit punched out and a fist that was condensed from the red mist, colliding against the four brothers with devastating might.With a boom, their sword formation collapsed. The four of them all vomited blood and flew backwards. Although their sword formation was not weak, the disparity in strength compared to the evil spirit was just too great.However, the part of the fist that was condensed from dense mist had clearly been shaved off after the collision with the sword formation.“Hmm? What is this power? It’s clearly puny, yet it gives me a slight sense of threat!” The evil spirit thought in surprise. It could sense how extraordinary the sword Qi was, but it did not think too much of it. Immediately, it turned into a cloud of red mist and shot towards the four brothers. It even enveloped the Sainthood experts who attempted to stop it with formations, beginning to devour their lives.Whether it was the four brothers or the Saint Emperors, they all began to wither at a visible rate within the red mist. Their life force and their essence were being drained away at an extremely terrifying rate.