Because Shangguan Xiu had just been with them, and especially since Shangguan Xiu had effortlessly dealt with those insects, Chen Yao and Luo Keke felt that with Shangguan Xiu around, they had nothing to fear.
Since Chen Yao had seen the map and knew the general layout of the underground palace, he realized the map didn't mention the strange insects inside the palace, which made him worry that after many years without visitors, there might be a lot of unusual insects inside.
So, without Shangguan Xiu, if they were to encounter insects again, even if he knew the full layout of the underground palace and where the exits were, they could only meet their demise if trapped by insects.
Therefore, hearing neither the sound of Shangguan Xiu's footsteps nor his conversations with An Xiaomian made Chen Yao and Luo Keke continuously anxious.
