In the blink of an eye, immense power had already struck the flame barrier in rapid succession.
The flames of the barrier visibly dimmed.
As the firelight weakened, the barrier was shaken by that immense force and retreated again and again.
Above Su Shi'er's head, the Half-Immortal Artifact Treasure Umbrella, which had been spinning at high speed, suddenly slowed.
It was clearly unable to withstand such tremendous force.
Noticing this change, the Grand Elder's gaze turned cold, and her hand movements decisively accelerated.
Just as she poured more Demonic Yuan into her attack, attempting to deal a killing blow—
Su Shi'er's hand seals shifted, and formation seals woven from True Yuan plunged into the earth below at astonishing speed.
"Hmm? Formation seals?"
Noticing Su Shi'er's movements, the Grand Elder was visibly taken aback.
Her first reaction was surprise.
This place was still Xuan Nu Tower's territory, and this "Daoist Tianshan" had only just arrived.
No one knew better than her whether there was a formation here.
As for the man before her having set up a formation in advance, that was even more impossible.
Yet no sooner had the thought crossed her mind than intense formation fluctuations suddenly erupted across the field.
The powerful formation fluctuations enveloped the entire mountain peak.
A gigantic formation seal emerged. Within it, four enormous phantoms radiating astonishing auras charged out.
These four phantoms were the Four Sacred Beasts of the Four Symbols Formation Array.
The Four Sacred Beast phantoms soared into the heavens, each occupying one direction.
Among them, the Vermilion Bird phantom let out a piercing cry.
In that instant, the Fire Bird Artifact Spirit of the Half-Immortal Artifact Treasure Umbrella appeared.
It did not merge with the Vermilion Bird phantom, yet the two echoed one another across the distance.
The Fire Bird