C198 Four Elements Breakthrough Pill

The moment the crucible appeared, Elder Gu's expression changed. He glanced at Elder Ren with an obscure gaze. With Xing Yangyu's status, even Master of Pill Hall would not have a crucible of this level. There could only be one …

Elder Ren's expression was unnatural, but even if Elder Gu had his suspicions, he had no evidence, so he could only give up