C1698 Destruction Spell Formation
That formation was already extremely hidden by the side of the Cloud Sky River. For Chu Hee and the others, if they were to search for it themselves, it would likely consume a lot of their energy. However, they had also met Yun Huang and the others here, so Chu Hee knew that this formation was probably nearby. Thus, they didn't need to spend too much effort to search for it