Chapter 411: Dugu Bubai

A mysterious world, a mysterious valley, and mysterious sword energy.

After Lin Jiufeng stabilized his blood energy, he let out a long breath and felt the pressure.

This wasn't easy.

After he returned to the mortal realm, his strength skyrocketed. After entering the ninth heaven of the Immortal King Realm, he had never experienced such a powerful pressure.

Even when the three Immortal Emperors of the Seven Races of the Ancient Age attacked the mortal realm, it also wasn't a problem for Lin Jiufeng.

At that time, he felt the pressure.

But that was all.

Unlike just now, when the sword energy shot out and swept through the sky, the pressure forced him to retreat.

"This definitely far exceeds the three Immortal Emperors of the Seven Races of the Ancient Age. There's actually such a terrifying existence in the mortal realm?" Lin Jiufeng looked at the huge valley with doubt.