A streak of golden light, like a gleaming golden thread, sliced across the sky and landed before Hongjun.
That golden light was the Innate Supreme Treasure, the Taiji Diagram!
Clearly, in his final moments, Yin-Yang Ancestor had exhausted the last of his strength to send the Taiji Diagram to Hongjun.
Even Hongjun froze for a moment when he saw the Taiji Diagram land before him.
He had never expected Yin-Yang Ancestor to give him the Taiji Diagram as he fell.
This had truly caught Hongjun by surprise.
Still, Hongjun was only stunned for an instant. In the next moment, he pocketed the Taiji Diagram and refined it in a flash!
Well, with Hongjun's current cultivation, he could not fully refine an Innate Supreme Treasure!
But Hongjun did not need to refine it completely. An initial refinement would suffice!
As long as he could use it, that was enough!
At his current level, although Hongjun could not fully refine an Innate Supreme Treasure, completing an initial refinement took only an instant!
Now Hongjun had three Innate Supreme Treasures in hand: the Jade Plate of Creation, the Pangu Banner, and the Taiji Diagram!
After refining the Taiji Diagram in a flash, Hongjun handed it to his good corpse and sent him toward Yin-Yang Ancestor's position to take his place.
Only then did Rahula finally stabilize the Immortal Slaughtering Sword Formation amid Yin-Yang Ancestor's self-detonation.
With a peak Daluo Golden Immortal and a top-grade innate spiritual treasure detonating together, even the Immortal Slaughtering Sword Formation struggled to withstand it. Rahula had spent considerable time and effort keeping the formation running.
In the end, however, it had not shaken the Immortal Slaughtering Sword Formation, much less broken it!
After all, the Immortal Slaughtering Sword Formation used the Western Ancestral Vein as its formation base!