After Bian Heng left, Zhang Tie stayed at the bottom of the ocean alone, waiting for the heat to dissipate.
As long as he didn't lose his mind, Zhang Tie didn't worry about it at all. Additionally, Bian Heng told him to wait in the water until the sunrise. Even though he was requested to stay in the water for 10 more hours, Zhang Tie could only do that.
When Zhang Tie recalled Bian Heng's warning, he looked at southwest Whitedragon Gulf. With lotus-flower eyes, Zhang Tie saw the thousands of meters high city wall of Emperor NvWa City once again.