The temperature beneath the Earth Core was simply unbearable for them. Even if Old Mao was a Martial King, he wouldn't be able to last long inside the Earth Core. Not to mention, the Gold-Swallowing Beast was just a cub. As for Wang Zhan and the others, it went without saying...
Wang Zhan paid no heed to their concerns and took the lead, walking slowly towards the depths of the Earth Core.
However, after they had walked for some time, Old Mao suddenly tapped Wang Zhan's shoulder. "Don't you feel it?"
Wang Zhan was startled. He turned around subconsciously, only to find Old Mao's and Xiang Tian's foreheads already covered in beads of sweat. The Gold-Swallowing Beast was even more restless, pacing back and forth. It tried to escape several times, only to be caught and pulled back by Old Mao each time. They still needed the Gold-Swallowing Beast to lead the way; how could they let it sneak off so easily?
Why don't I feel the heat?
