In the mist, two streams of spiritual light traveled unhurriedly, stopping before a jade wall riddled with numerous pits of varying sizes.
Many protruding ice-fire jade ores were also visible, making the stone wall resemble a large piece of ice-fire jade.
Madam Cao scanned the jade wall several times with a glint in her eyes, seemingly discovering something, and with a flash, she stopped before a smooth jade stone about two zhang in size.
Immediately, she raised her hand, and a golden light emerged, transforming into an arc-shaped golden blade that slashed at the jade stone with a sizzling sound.
A clear bang echoed, and the smooth jade stone trembled violently, accompanied by a whistling wind.
Then, a large amount of spiritual light floated out from the pits in the jade stone. This light initially appeared ice-blue, followed by red starlight-like spots appearing within it, transforming into two-colored spiritual light.
The blue and red spiritual lights flickered, forming a constantly flowing strong wind that enveloped the entire jade stone wall.
For a moment, spiritual light flashed before their eyes, and the wind howled loudly.
Zhang Ling, who was twenty miles behind them, quietly released a wisp of divine sense and happened to witness this scene.
He couldn't help but be surprised. This strong wind was the yin-yang wind they had encountered in the passage above. Could the source of the strange wind be forming here?
Madam Cao, seeing this, was overjoyed. A cyan spiritual talisman appeared in her hand. She injected spiritual power into it, and the cyan talisman floated in the air, forming a cyan wind ball about a zhang in size.
The wind ball spun rapidly, generating a powerful suction force that immediately sucked in the yin-yang wind forming on the jade stone.
The wind ball rotated quickly, like a bottomless pit, constantly devouring the yin-yang wind from the jade stone. The entire jade stone trembled rumblingly, and then some mysterious spiritual纹 patterns emerged on the smooth stone wall.
“Fellow Daoist Yangshan, it’s your turn to act,” Madam Cao said to the old Taoist Yangshan beside her.
The old Taoist Yangshan expressionlessly flicked the horsetail whisk in his hand, and with a spell incantation, it transformed into an ice dragon again, spewing out countless ice blades that bombarded the jade wall with a deafening roar.
After a round of attacks, the jade stone did not shatter. Red and blue runes emerged on it. Clearly, there was a powerful restriction in place.
Old Taoist Yangshan frowned, gathered his spiritual power again, and with a wave of his hand, a strange blue blade, resembling neither a sword nor a saber, appeared before him.
This treasure was about a zhang in size. Spiritual power was injected into it, and it instantly transformed into a transparent blue ice blade, directly striking the jade wall with immense force.
This attack was very fierce, causing the entire jade stone to shake. However, it still did not break the restriction on it.
Then, Old Taoist Yangshan spared no effort in urging the ice dragon and the strange blade to attack continuously.
Although Madam Cao did not join the attack, her hands rapidly formed hand seals, and a half-red, half-blue treasure pearl appeared between her hands. This treasure spun rapidly, and blue and red runes also emerged on it. It looked somewhat similar to the runes on the jade stone wall.
She seemed to be planning to use this treasure to break the restriction.
Zhang Ling, hiding in the distance, observed the situation and knew that the two were breaking the restriction. It seemed that they would not be able to break it in a short time.
He watched coldly for a while, then carefully retreated a distance backward, and then transformed into a faint shadow, retreating several miles along the way he had come.
He was not really retreating, but rather moving away from the location of the two people.
Zhang Ling chose a relatively flat place, stopped, and with a pat of his storage bag, two black and red array disks and more than a dozen black-cyan array flags appeared in his hand.
This was a set of array tools that could be used to set up an array called the Ice-Fire Yuanling Array. This array was an ice-fire dual-eye array, a set of arrays that combined defense and attack.
This array was one of several arrays he had refined when he was hunting desolate beasts in the Barren Domain. He had refined it by studying the Dragon Old Man’s array classics.
This array was not very strong. It could only trap fifth or sixth-tier desolate beasts for a short period of time. But it was actually not bad. And since this place was located in the ice-fire mineral vein, where ice-fire spiritual energy was abundant, the power of this array could be increased by 30% when deployed.
Thinking this, Zhang Ling carefully inserted these array flags around, covering an area of fifty or sixty zhang around him. He also took out a few mid-grade fire spirit stones and some ice spirit stones and placed them in the south and north positions.
Then, he placed the core of the array, the two array disks, in these two locations. With a flash of spiritual light in his hand, a circular bronze array disk appeared again.
He injected a little spiritual power into it, activating the array. Seeing the array flags light up with spiritual light, Zhang Ling knew that the array had been successfully set up. He quickly put away the array disk in his hand. Then, he released his divine sense and scanned the surroundings several times. Seeing that there was nothing unusual around, he quietly moved forward again in the direction of Madam Cao and the other two.
Setting up the array here suddenly was for insurance purposes, leaving it as a backup.
Once the two people in front opened the restriction, if there were only ordinary treasures inside, it would be fine. If there really was a Core Formation Pill, he would have to snatch it.
The danger involved was conceivable. Old Taoist Yangshan was a late-stage Golden Core expert, and Madam Cao was not simple either. With this insurance, even if he could not defeat the two, he could retreat calmly.
After re-concealing his figure, Zhang Ling closed his eyes slightly and waited with bated breath.
After waiting for more than an hour, he opened his eyes after a cracking sound of ice breaking and carefully released a wisp of divine sense to check the direction where the two were.
Under the attack of Old Taoist Yangshan and the other, the spiritual light on the jade wall had dimmed by more than half, and cracks had appeared.
At the same time, the cyan vortex above Madam Cao’s head, after absorbing a large amount of yin-yang wind, had also expanded to more than ten zhang in size. The whistling wind inside was loud, and it became unstable, seeming like it could explode at any time.
But the restriction on the jade wall was about to be broken, and both of them showed joy.
After attacking for more than ten breaths of time, with a loud bang, the jade wall was directly shattered into countless pieces. A two-zhang-sized dark hole appeared before their eyes.
“The array has been broken, let’s go in,” Old Taoist Yangshan flashed and entered the cave.
Madam Cao was also overjoyed, but before entering, she chanted incantations and quickly formed hand seals, and a few strands of golden spiritual power struck the cyan wind ball in the sky.
Immediately, a whistling sound of wind roared, and the wind ball continued to deform and then burst, and the yin and yang wind condensed inside turned into a large cloud of mist and scattered around. Like wind blades, it ravaged the surroundings. The nearby ice-fire jade and rocks were turned into powder.
Madam Cao looked at it with a cold expression, pondered, and also entered the passage.
