A doctor, a dedicated doctor who is generally perceived as someone who will never betray, could easily connive at the unforeseen demise of a person that trusts in his medical skills.
Zhang Yun seemed unsurprised by Doctor Zhang's choice. He perceived Doctor Zhang to hold high esteem for his family. If not so, he would not have followed Zhang Ping to serve dutifully and brought his entire family to Jibei, seeking shelter and livelihood in the residence of the Pingxi General.
Zhang Yun waved dismissively at Doctor Zhang, "Go. Be quick."
Doctor Zhang repressed the alarm that had surfaced on his face, steadied himself, and descended from Zhang Yun's carriage.
Back in his carriage, Doctor Zhang's hands shook as he took out a small box. On opening the box, he observed the several types of poison laid within.
Since ancient times, healers have been adept with poisons, with medical skills indistinguishable from their knowledge of toxins.