After all, the origin of the black thread is unknown, and Lu Xuan doesn't know how it corrodes the spirit glowing grass. It's okay if it works after pulling it out, but what if other spirit glowing grasses are still unavoidable from being eroded That would be heartbreaking.,Lu Xuan was only a Qi Refinement Second Layer cultivator, unable to fully possess a spirit field that belonged solely to him.,The bluish-gray stone wall was encircled by a ring of black thorns, densely covered with sharp black spines, serving as a certain degree of protection.。