Bab 18: Class Certificate, Complete the Transition to a Hidden Class!

Liu Yan used his Fog.

With that, white fog filled the entire inside of the cave, shrouding Liu Yan's body and completely blocking his vision.

Within the range of the skill, all vision was obstructed.

However, Liu Yan could still clearly sense the blue-flame skeleton wolf's specific position and its movements through the white fog.

At the same time, he also had the skill Aura Concealment, making it even harder for the blue-flame skeleton wolf to sense his position.

For a time, Liu Yan was in the dark, while the blue-flame skeleton wolf was in the open.

On top of that, there were many debuffs that came with the white fog, which greatly affected the blue-flame skeleton wolf's combat strength.

Facing a powerful level 5 boss, Liu Yan did not dare to hold back.

He immediately activated Strength Enhancement, increasing his strength by three times.