The giant change inside the art room forced out the shadow which was hiding there. Chen Ge had extremely good vision with the aid from Yin Yang Vision. With one glance, he managed to match the escaping shadow with the one that came from Room 413.
"I've finally found you!" Nails kept stabbing into Chen Ge's body. The pain that it brought was not that serious; what he hated was the feeling that his life was slowly fading. The shadow made the first move, but Chen Ge was closer to the door, and thus, he reached it faster than the shadow.
Chen Ge knew that the enemy was not in its corporeal form, so he might be able to stop it. Therefore, he decided to close the door that had started to bleed. The change continued in the art room. Just as everything was about to get swallowed up by blood, Chen Ge chose a method that was no different from suicide.