"No, no, something is off here. They must have done something." Gu Fan speculated a possibility and decided to test it. He led Gu Ling on for a bit, to a crossroad and prepared to take a right turn.
Gu Ling immediately warned, "We can't go there, brother."
"Okay, I got it." Gu Fan hid with Gu Ling in the shadows, carefully observing the situation. Since Gu Ling couldn't make the turn, this indicated someone was there.
They waited for a while and still couldn't turn. But no one appeared from the right side of the road, which made Gu Fan suspicious and he figured something out.
"No wonder. This must be your smart trick, Leng Le." Gu Fan concluded. The other party must have arranged for someone to stand on the right and watch. That's why Gu Ling could sense someone there, but the person's task was simply to stand there motionlessly, hence nobody seemed to be coming from the right side.