The letter has been delivered, and the Empress tells Cai that there are still people loyal to her. She tells Cai not to tell Luo that he is planning to lure her into the palace. She also tells him not to mention the plan to poison Bai Junhao with Luo's poison. She says that she will grant Cai's wishes as long as he works for her. The Empress then asks Cai if he will take her with him to the secret underground room where she has locked Cai Junhao. Cai says that he will stay with her until the day she is cured. He asks Cai to make the medicine for him first. Cai wonders if the poisoner is one of her men. He says that it is not fatal, but it changes the nature of his blood for a short period of time. He wonders if it is someone working for his mother and minister Luo. Cai tells him that he was too negligent in imprisoning his father and the empress.