C577 The Mysterious Old Man

When Lu Feng's palm landed on the man's body, waves of powerful energy converged on Lu Feng's palm.

When this energy gathered, the man's Qi weakened once more, and soon disappeared.

"Is this the Demon Fetal Qi that he absorbed?" Lu Feng looked at the small ball in his palm and muttered.

This force was very strange, even more unique than the Ethereal Power