As Happy Drunk attempted to pressure Han Tianyu into reaching out to the three other guilds, Jiang Fei and the others had already gone far into the basement!
When they first entered the basement, Jiang Fei had thought that this place was a wine cellar. While the basement was becoming narrower the further they walked, it was also becoming longer. This was an underground passage.
At that stage, the snakes, worms, rats, and ants had all demonized into monsters. However, the intruders were Jiang Fei and the others. Rather than clog up the flow, they only ended up giving those intruders lots of Experience!
As they delved deeper into the passage, the level of the monsters started to increase. It started with Level 30 Elites, and now, there were Level 32 Elites. Occasionally, a small, Advanced Elite leader would lead a group of Elite monsters to try and halt their progress.