Of all the Numinous Treasures, the Yin Crystals were perfect for replacing the deep sea stones and the pine driftwood in the Misty Mountain Array. With these crystals, Chen Fan could finally finish the array and speed up his progress toward the Ethereal Enlightenment stage.
One might ask, what was the Ethereal Enlightenment? Although its exact nature was convoluted, its effects were clear: unlocking the Immortal Enlightenment.
Once Chen Fan reached the Ethereal Enlightenment, he should be able to face off against any Transcendent Masters in the world easily. Then and only then, Chen Fan would have the ability to protect his loved ones from harm.
"Your sect is located in Zhong Zhou Province and Dong Du City?" Chen Fan asked Master Wu.
"Yes, yes." Master Wu nodded vigorously.
Chu Zhou City nodded slightly. There was no time to waste, as soon as he finished up his personal business at Chu Zhou City, he would leave for Zhong Zhou.