After failing to level-up his Martial Soul, Su Mo left the Divine Map dejectedly and returned to his room.

Then, he focused on his cultivation and began refining his Dark Force.

His Dark Force was now quite concentrated, and he was preparing to increase his cultivation in two days.

DONG! DONG! DONG!

After four hours, he heard someone knocking outside. It was Li Feng and Hong Qingxuan.

In the room, Li Feng said quietly, "Su Mo, I heard of a place where we could earn Spiritual Stones!"

"Oh?"

Su Mo's eyes lit up, and he asked hurriedly, "Where?"

"Death Arena of Sky Devil City!" Li Feng said seriously.

"Death Arena?" Su Mo frowned. It sounded like a violent place.

"What's it like?" Su Mo asked.

"Death Arena is thousands of kilometers from of Sky Devil City. Just as its name implies, it's a deadly battleground where men fight against men or beasts. All battles only end when one opponent dies."

Li Feng's expression was grave, but his eyes shone brightly. He continued, "There are