Chapter 685: Chapter 685 - What is it?

Now, underwater, nobody could use language to communicate, with only hand gestures serving as their mode of expression. Lu Yi gestured towards the surface, implying it's best to return.

Gu Fan also felt it would be prudent to come back, especially after encountering so many things and hearing the inexplicable singing, which was sending chills down everyone's spine.

Just when Gu Fan was about to make up his mind, he saw something flash behind Lu Yi, and was struck by a sudden, indefinable fear.

Gu Fan immediately swam over to get a closer look, his eyes wide with panic. Everyone turned alert upon noticing Gu Fan staring in a specific direction.

At this moment, the boss and Qian Feng, along with others, were meandering through the immense, disparate engravings, straining to find a possible entrance. They had not noticed anything unusual.