A small courtyard enclosed by a wall of bluish-gray stone, about three feet long and two feet wide, with most of the area being grayish-black soil. Only a narrow path of blue stone was left in the middle.,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.,However, the defensive capabilities are barely better than nothing. They can only deter honest people but not cunning villains, let alone protect against those elusive and covetous strange insects and monsters who eye the spirit plants.。