C215 Imparting Cultivation Techniques

That's right, the Three Evils Cold Qi in the ice lake came from the Three Evils Cold Vein deep underground at the bottom of the lake. This Three Evils Cold Qi was also a type of Heaven and Earth Spirit Vein. Furthermore, Lin Haorann could tell that it had already reached the Heaven grade!

Heaven grade above first grade! However, even though this Three Evils Cold Vein had reached the heaven grade