Song Lei, Damien, and Old Wolf started ascending the stairs. They had to walk in a straight line right in the middle of the stairs as getting near to the railings or the walls would mean certain death.
When they reached the 8th floor, they saw a darkness monster covering more than a quarter of the corridor, waiting in its place, convulsing from time to time. Old Wolf gestured them to be silent and walked towards the monster. After getting near enough, he raised his hand and made a palm towards the monster. It must've felt his presence as it stopped whatever it was doing and launched towards Old Wolf.
Unfortunately for it, Old Wolf had fought with a lot of different monsters before. He knew that he couldn't let the monster do whatever it wanted to and launched an attack. A white shockwave spread out and covered everywhere five meters in front of him.