The Most Dangerous Area On Earth

As it hit, the lightning greatly weakened but still came at Xu An. It was, without a doubt, a successful test!

Xu An was simply curious if this brand new energy could do something to the Heavenly Tribulation and did not have high expectations.

However, upon this scene. He was celebrating inside as he screamed inwardly, full of spirit.

It worked! Xu An smiled as his eyes sparkled.

"Master, how did you do it?"

Even Heileen was confused! Only people with a special and rare constitution managed to do such a feat.

Master, so you really… Heileen said to herself slowly. First, learning a defense technique within short seconds and now this? All dots were connected! Heileen believed her answer was spot on! 

"Master, I never see someone as talented and genius as you," complimented Heileen. Xu An let out a forced laugh. 

It's thanks to that book, though, Xu An thought to himself.