Just before Yan Chihuo destroyed the twelve statues, the Dark Mystery King and Nether River King shouted in unison. One pointed at the small black banner, which abruptly swelled with a bang, turning into billowing black mist that enveloped the Skywing King. The other formed a hand seal, and the bone plaques joined end to end, transforming into a bone dragon that encircled the Skywing King. Then the two flew over together, their auras surging. The Skywing King's expression changed drastically, and he retreated at high speed. Yet the two opened their mouths and simultaneously spat a bloody arrow at him.
As the two bloody arrows flew out, the auras of the Dark Mystery King and Nether River King rapidly waned, as though those arrows had drained away all their strength.
In truth, these two bloody arrows were the renowned Soul-Devouring Arrows of the Netherworld. Anyone who used this technique gathered all their mana and soul power into the bloody arrows. Using it meant certain death.
Yet anyone struck by this technique would also certainly die unless their strength vastly surpassed that of the caster. It was a technique of perishing together with one's enemy. Though the Skywing King was stronger than the two of them, the two had used this technique together, and with the remaining empowering force of Reincarnation City, the Skywing King had no chance of escaping unscathed.
The reason the Dark Mystery King and Nether River King had used this technique was that they sensed Reincarnation City's formation was about to break. Before Heaven's End King departed, he had forced the two to swear an oath: before Heaven's End King conquered the Heavenly Heart Continent, as long as they lived, the formation would remain; when they died, the formation would perish.
The empowering force of Reincarnation