As the Earth Core Soul Marrow entered his body, the nearly imperceptible traces of spiritual energy in the air suddenly seemed to boil, surging endlessly toward Xiao Yan.
Because of its unique nature, spiritual energy was ordinarily almost impossible to detect. Yet the portion Xiao Yan had stirred up was simply too vast to be ignored.
The disturbance in the spiritual energy was so great that Xiao Yi Xian and the others in the residence reacted at once. They quickly appeared and soon determined that the source of it all was the alchemy chamber where Xiao Yan was.
Lei Jingxiao was inwardly startled as well. With his vast wealth, he had directly piled up enough medicinal pills to break through into the Spiritual State Soul, but he clearly remembered that his breakthrough had not caused such a violent commotion as Xiao Yan's.
The riot of spiritual energy had even drawn the notice of many people outside the residence. After all, there were quite a few people in Holy Pill City who could sense spiritual energy, but someone capable of causing it to erupt into such turmoil was exceedingly rare.
Xiao Yi Xian appeared in the center of the residence as well, releasing Dou Qi at the level of a Dou Zun. No further words were needed. A simple, direct display of strength was the most effective deterrent.
Xiao Yi Xian then instructed Qing Lin and Lei Jingxiao, "The commotion from his breakthrough is too great. For safety's sake, the three of us will take turns standing guard for him!"
Xiao Yi Xian did not ask Fei Tian or Mu Qingluan, mainly because neither had reached the Dou Zun level. They might not be able to truly protect Xiao Yan.
Qing Lin and Lei Jingxiao both understood the gravity of the