Chapter 1939: Someone From Tianhuang Mainland

The sigh seemed extremely sudden in the quiet cave. Su Zimo's heart skipped a beat and he tensed up with a guarded expression.

The sigh clearly came from a man and not Tang Ziyi.

Could there be someone else in the cave?

He had conversed with Tang Ziyi in the cave for so long but he did not notice this person's existence?

Su Zimo looked at Tang Ziyi. The latter had a calm expression and there was nothing unusual about her, as though she had not heard the sigh at all.

Releasing his spirit consciousness, Su Zimo scanned the cave carefully but to no avail.

The sigh did not seem to have come from the cave. Instead, it sounded in his mind!

"Stop searching. I'm not there,"

The old and mysterious voice sounded in Su Zimo's mind once more.

"Who are you?"

Su Zimo did not say anything and merely asked with his spirit consciousness.

"Who am I? Who am I…"