Nie Yan fled the battle but he didn’t immediately leave the area. Instead, he took a detour and circled round the perimeter before stopping to scan his surroundings. Eventually, he spotted a slope not too far in the distance. He dashed toward the slope and promptly arrived at its peak, whereupon he looked over in the direction of Eternal Sin and his team. Despite the somewhat low visibility, the light show of magic and clamor signalled that the battle was still ongoing and quite fierce.
At first, for the sake of preserving his life, he only planned to borrow their hand in killing the Serpentine Lizard and nothing else. However, since they tried to kill him, he wouldn’t sit by idly and let them enjoy their meal in peace.
No, the temptation of obtaining the equipment dropped by a Level 7 Sub-Elite couldn’t be abandoned so easily.
Thus, Candy and the others were unaware that Nie Yan hadn’t actually fully retreated but was instead spying on them from atop a slope.