Han Tieshan and the others couldn't find any traces of the Loulan Slash.
Jiang Feng's first strike was a sneak attack, fearing that the True Essence fluctuations would alert Uncle Fu, so the first strike was purely executed with physical strength, without having the chance to use the Loulan Slash.
When it came to the second strike, he executed the Loulan Slash's Moon-Slaying Style, and that blade struck directly onto Uncle Fu's forehead.
The third strike casually decapitated Uncle Fu, as the second strike had already killed him. At that time, Uncle Fu had lost all his resistance, and with a backhand strike, Jiang Feng chopped off his head, not needing to use the Loulan Slash at all.
In other words,
the traces of the Loulan Slash could only be seen on Uncle Fu's forehead.
And now, the head had been taken away by Jiang Feng.
Even if Han Tieshan and the others investigated, they wouldn't be able to find any traces of the Loulan Slash from Uncle Fu's corpse.
