C1320 Strange Poison Gas

"I refined it successfully!"

Rumble -

Accompanied by the sound of thunder, Wu Yuan revealed an excited expression. That was because, within his pill furnace, there was a round medicinal pill lying there. It was filled with a peculiar fragrance.

Above the sky, thunderclouds were rolling. It was actually a sign that a pill cloud had appeared.

Weng!

At that moment