Things are never as simple as they imagined. When they came between the 13th and 14th floors, an uninvited guest appeared in front of them. Long Ying, who saw the crawler for the first time, panicked and followed Lingyun closely. Lingyun guessed that Long Ying might not have seen the crawler. She said a little gently, "The crawler is an evolutionary species of zombies. Most people are afraid of...