Demon Refiner

To Zhang Tie's bitterness, the underground lake had no water channels for him to slip away through. It was like a giant bowl placed underground; the bottom held only a few strange, glowing aquatic plants and fish, while all sides were made of cold, hard stone.

Zhang Tie closed his eyes slightly to sense his surroundings and felt a faint current in the water. He swam toward the source of the movement, only to discover a small, steady spring bubbling up from the lakebed.

The man couldn't come down, and he couldn't go up. Were they just going to wear each other out like this?

Time was on his side. As long as he didn't emerge, the Hidden Dragon Hall and Long Wind Merchant Group would eventually notice the anomaly and send experts down. Zhang Tie comforted himself with this thought, though a sliver of unease remained. What other tricks did those people have up their sleeves?

After entering the Underground World, perhaps due to the lack of light, Zhang Tie felt his Primary Recovery Body beginning to take effect, much like an earthworm regenerating.

He might as well use this opportunity to recover his strength and heal his wounds!

Should he take refuge in the Castle of Black Iron? If he stayed inside for two days, the surface would surely be in an uproar, and by the time he came out, those people would have fled, not daring to linger on Hidden Dragon Island any longer.

The thought crossed his mind.

No, that was his final resort. He must not reveal this trump card to the enemy until the very last moment. Once exposed, the consequences would be endless.

Zhang Tie seized the time underwater to recover his strength...

On the shore of the underground lake, the man in