Because this Gobi sand scorpion is so cunning.
hiding his residence on a stone the size of a fist. The stone is also embedded in the wall.
Tang Yu would not care if he saw such a stone without his friend's warning.
even if he has a very powerful mind, it is much more difficult to find such a stone from the vast stone sea than the process of looking for a needle in a haystack. After all, the needle is in the sea, not hidden.
once Tang Yu's mind swept away, it was possible to find the existence of needles.
but stone!
it's hidden in countless stone sea like...