Yan Chengfeng picked up the tin box and gently lifted the lid. For a time, I saw a strong cold air filling the stone room. Even with such a cultivation base as Leng Xuan, I couldn't help shivering. However, at this moment, the Heaven Defying Art in his body suddenly started to operate on its own, swallowing all the cold qi around him into the body, and then transformed it into a thick true qi, which was stored in his dantian.

   seemed to be feeling something, I saw Yan Chengfeng suddenly turned his head to look at Leng Xuan, slightly surprised: "You can absorb this cold air?" Leng Xuan was also very surprised, spread his hands and smiled: "It seems so."

Yan Chengfeng murmured 'strange' and said, "Although this Xuanyin Stone contains a huge amount of spiritual energy, because its nature is too cold and cold, ordinary physiques cannot be blended with it at all. Unless you are like me, you won't have this worry if you practice the yin exercises." Speaking of which, he added another question: "Boy, do you feel unwell?"

  Leng Xuan shook his head and said, "No." After speaking, his heart couldn't help but move. In addition to the Heaven Defying Art, he also practiced another cultivation method, the Nine Suns Casting God Art. The effect of this exercise is unique, not only can it speed up the absorption of spiritual energy, but also can transform any form of spiritual energy by itself and use it. Although the Jiuyang Divine Casting Art has been integrated with the Heaven Defying Art, this effect has not been degraded. He has always been curious about the Nine Suns Casting God Technique, but he has asked many people, but no one knows the origin of this technique. At this moment, facing the legendary figure in the cultivation world, Leng Xuan secretly hesitated whether to ask him.

   At this moment, Yan Chengfeng reached out and took out the Profound Yin Stone from the box. I saw that Xuanyin Stone was about the size of a fist. From the outside, there is nothing special about it. However, when his eyes were fixed on the Xuanyin Stone for a long time, there seemed to be a strange and mysterious suction from the Xuanyin Stone, seducing his soul. Seeing this, Leng Xuan quickly moved his eyes away, shook his head secretly, and calmed down. At this time, Yan Chengfeng turned his head and asked, "Leng Xuan, would you like to feel the power of the Xuanyin Stone?"

   After he finished speaking, he threw the Xuanyin Stone directly into Leng Xuan's hand. After receiving the Xuanyin Stone, Leng Xuan only felt that the anti-sky art in his body was running wildly, like a beast that had not eaten for a long time, greedily swallowing the cold air in the Xuanyin Stone. At the same time, he also felt a shock in his heart, as if something was calling him. He focused slightly, and finally realized that it was the magic refining sword he obtained not long ago that was calling him through his mind. After hesitating for a while, he simply summoned the magic sword. As soon as the refining magic knife came out, I saw that the cold air that was originally inhaled in the body was directly transferred to it. Moreover, with the injection of cold air, a layer of faint black light gradually appeared on the blade of the refining sword, and a violent and powerful aura suddenly filled the stone room.

The earth spirit beast exclaimed: "Boy, what are you doing? Old ghost Yan, stop him." Yan Chengfeng waved his hand very calmly and said, "Don't panic, the knife in his hand seems to be sealed. Now it is being unsealed through the cold air of Xuanyin Stone."