C610 A Shooting Star must Kill

"Nether Cauldron... What is the Nether Cauldron? It's obvious that this thing can be used to refine pills, but it needs to obtain something... Not an ordinary flame, but inner Qi..."

Xu Tianzhi stared blankly at the small purple cauldron on the table. The more he looked at it, the more he felt that this thing was unusual. He suddenly felt that ten medium crystals was a huge bargain