The materials Cultivator Du had planted in their bodies were not some deadly poison at all. Only after they became hosts to the "Mind-Entwining White Corpse Gu" would those compounded materials take effect.
Later, since the gu insect had not been planted, Jin Zhiyuan and his wife swallowed the antidote Li Yan had given them, thinking it was merely a detoxification Pill. Yet since those materials had been forcibly imposed upon their bodies as foreign substances, they still affected them.
After discovering this during their journey, the two of them assumed it was caused by lingering poison. Thus, while taking Pills, they also forcibly expelled much of it with their spiritual power.
Once their two children awakened, they would only need to continue forcing it out with spiritual power...
After Jin Zhiyuan and his wife's souls roughly explained everything, they immediately entered the cave to seize bodies. The bodies they possessed had also been placed there long ago by Jin Zhiyuan.
In truth, he had prepared six bodies in total for himself and his Dao Companion, placing them in different locations. This place merely happened to be the closest to where he had arrived.
Given the Sentimental Dao Jin Zhiyuan cultivated, all the targets he had sought for these six bodies were utterly wicked and vicious people.
Their spiritual root attributes also had to basically match his and his Dao Companion's, especially their primary spiritual roots, which had to be identical. Of the six bodies, only two belonged to Void Refinement Realm cultivators whom he had found with great difficulty.
The remaining four cultivators were all Spirit Transformation Realm cultivators. He excelled in the path of spirit plants, and his own combat strength was only above average. It was already difficult enough to capture one Void Refinement Realm cultivator alive