The huge underground space had already become a world of wind and fire.
Zhou Wen didn't pay attention to the battle between the stone sword and the elder. His attention was focused on the pill furnace.
No matter how one looked at it, the terrifying wind was prepared for the pill furnace. The pill furnace borrowed the wind's might to fan the flames in the furnace such that it became extremely hot.
Could this pill furnace really be refining the Pill of Immortality? Zhou Wen suspected as he used Truth Listener to observe the situation inside the pill furnace.
However, because the wind and fire inside were too violent, he couldn't hear much information.
Just as Zhou Wen was observing the pill furnace, a beam of light suddenly lit up inside. Even in the surging furnace flames, the beam of light was still very obvious.