He Cao had already closed his eyes. He had already switched his vision to the iron thread grass, and the iron thread grass was now more like a large centipede, crawling around on the ground.
However, the iron thread grass didn't crawl randomly. He was crawling along a line, and the center of this line was the tianniu clan. The houses that the iron thread grass had been to were all places where he could monitor the tianniu clan.
After the iron thread grass made a round, little crane grass discovered that there were five groups monitoring the people of the tianniu clan. Two of them were from the Liu Clan, and they were two groups of soldier spirit users, not weak at all. Among the remaining three groups, one was from the HU clan, a botanist, whom little crane grass recognized as one of the experts among the younger generation of the HU clan.