Tan Shuangshuang, relying on the "Three Turn Body Sculpting Art" she had cultivated, was as agile as a Great Martial Artist. With boldness and caution, she followed the man almost immediately, jumping into the pool and landing at the entrance of the underwater cave.
As soon as Tan Shuangshuang entered the cave, she realized that the interior wasn't made of soil but was instead formed of extremely smooth sloped stones. She landed on the stone and slid down, following the man ahead of her.
Tan Shuangshuang felt that her sliding speed wasn't slow, yet the sliding time was quite long. When she and the man in front of her finally reached the bottom and stopped, she noticed that the air below was much thinner.
Evidently, this place was deep underground. Fortunately, cultivators could extract the spiritual energy from the air, which was enough to replace breathing. Although the air here was thin, it did not affect Tan Shuangshuang much.