chapter 165 Horrible soul attack

After swallowing those drops of green liquid, Hiram Irwin trembled all over and could feel his soul growing.

"Phew, as my soul grows, my mental strength is also improving."

Hiram Irwin felt it roughly and found that these few drops of green liquid actually increased his mental power by one level.

"It turns out that the key to improving mental strength is to strengthen the soul."Hiram Irwin figured out the truth.

Then, Hiram Irwin jumped into the pool and...