Chapter 3389: Proof (2)

Feng Wu looked at Aunt Qing curiously. She didn't know there were prisoners on death row here.

Aunt Qing nodded and told Feng Wu in a low voice that Nest's prison was nearby.

The first test subject exploded and died, instantly making everyone calm down a little.

Soon, the second Spiritual King began his cultivation.

His potential was even stronger than the first one. He broke through four times in one go, but in the end, he also exploded and died.

Thankfully, Mr. Xu had learned his lesson. Each test subject was wrapped in a protective shield, so the explosion of their spiritual essence wouldn't affect the people around them.

The third… the fourth… the fifth…

Apart from the last person who broke through two levels in one go and injured his foundation, the other four people all exploded and died. This success rate…

Even Zuo Qingluan's hair stood on end, let alone the others.