Tribulation.

Amelia sighed and said, "Since things have already reached this level, let's stop worrying and focus on what is necessary." 

Shi Lang nodded and said, "Unity, I cannot extract anything from those seniors. This is something you guys should handle." 

Unity rolled her eyes at him and said, "You do not have to think so much. The extraction is not as gory as you feel. Those older people will extract the essence from the parts we need. The process is painless and quick. Also, do you think those guys will die? Stupid, they have enough vitality to last for another century even if they give up some of their essences." 

Shi Lang was surprised and said, "I think the Centurion beasts are different than the rest of the spirit beasts." 

The trio studied the array as they waited for a bit. The design of this entire thing was different than any other array Shi Lang had ever seen. Unity asked, "What do you think is this layout?"