"Let me see your jade box," said Su Yang without needing to ask if they had one.
"Here you go…" The old lady in red robes retrieved a red box and handed it to Su Yang, who was kneeling in front of the blue flower.
The jade box in his hands was similar to the one the White Pearl Treasury handed him his Pure Yang Flower in. When herbs or medicine with Profound Qi are uprooted from where they grew, their quality would degrade as time goes, so cultivators would use these jade box for storage to slow down the decaying process. The more expensive jade boxes could even perfectly preserve medicines and allow their quality to remain the same even after hundreds of years.
"Although I was doubtful at first, this is indeed the Extreme Yin Flower. They normally grow in the coldest of cold places, yet one managed to appear in this Thunder Valley…" Su Yang pondered as he casually reached for Extreme Yin Flower, which greatly shocked the four figures watching.
