A police car arrived at the school. The police exchanged a few words with Teacher Liu and took him away. Seated in a classroom near the window, a boy bit his pen and severely reproached himself.

Teacher Liu, the school worker and Teacher Lin’s father were questioned separately. The police asked them every detail about the time they had seen Lin Xiaoxiao on October 1st. All three said that Lin Xiaoxiao was no different from usual.

The police showed them pictures of Ling Shuang and Lin Xiaoxiao again. Ling Shuang was not a criminal who was in hiding. She was a scholar and she lived in seclusion. Only Chen Shi and Gu You knew that Ling Shuang was their "old friend."

The three of them didn’t recognize Ling Shuang from the photos, but were able to recognize Lin Xiaoxiao's photos successfully.

During the entire...