C621 The devil in the cave of gods

In order to verify that the black miasma was poisonous, with the help of the silver needles, it was difficult to prick his skin. Under extreme helplessness, Lin Yiyuan proposed a method to use the Fish Intestine Sword to first cut his skin, then insert the silver needles into the wounds.

Previously, when they were in the tree cave, Lin Yiyuan had made a deal with Elder Snake