Along the way, they encountered numerous chambers sealed by defensive intent barriers. However, with Li Yun's strength, those barriers posed little challenge. One after another, he shattered them, allowing the group to obtain various martial arts manuals and several valuable treasures.
Half a day passed like this.
At last, they emerged from the winding labyrinth of passages and arrived at a vast underground lake.
A single narrow log bridge stretched across the surface, extending nearly five hundred meters to the other side.
The water beneath it was a murky dark green, and from time to time, bubbles rose slowly to the surface, releasing faint ripples.
Han Xue picked up a small piece of metal and tossed it toward the lake.
Before it could even touch the surface, the metal began to corrode visibly. By the time it reached the water, it had already melted into nothing.
The three of them fell silent.
The toxicity of the lake was terrifying.
