Derek tried to use the outside to circulate his blood quickly, and as he did so, he could bite his fingertips. As the blood circulated through his fingers, it flowed out of his body from the bite.
But what came out of the wound was not red blood, but black blood. This was the last resort he had because by doing so, he risked further infection in his heart.
But if he wanted to survive, he must expel some toxins that had mixed with his blood.
While he did that, the crawling behind him continued, and this time Derek could turn his head, although the light can illuminate some part of the room, he could not tell if the room they were in was large or small, Derek could not see well what was crawling behind him...
But the silhouette and the eyes of it made his heart beat fast, his body froze, and a shiver runs through his spine. He didn't dare to move anymore and let it come closer to him.