Red Mandarin Dress by Qiu Xiaolong

garage. Nor about his sex business scenario, which had been vetoed by Li. The sex industry in the city was an open secret, but no one was supposed to talk about it, especially not in connection with a sensational serial murder case.
    As for the psychological approach expounded by Chen, Yu didn’t even mention it in the bureau. He didn’t think anyone would take it seriously. Psychological studies would help only after the criminal was caught, but not when he remained unknown and at large. Still, Yu recommended heightening security with the help of the neighborhood committee on Thursday night. For once, Li agreed readily.
    Yu was preparing to make a second cup of tea, putting another pinch of oolong tea leaves into the old cup, when the phone rang again.
    “May I speak to Detective Yu Guangming?” It was an unfamiliar voice, possibly that of a middle-aged woman.
    “This is he. Speaking.”
    “My name is Yaqin. I worked with Jasmine. You came to our hotel the other day. I saw you talking to the front desk manager.”
    “Yes, I did.”
    “Is the reward for information about Jasmine still available?”
    “Yes, two thousand Yuan, if it leads to a breakthrough.”
    “Jasmine had a boyfriend. She met him several months ago. He stays at our hotel when he comes back from the United States. He’s a regular customer here.”
    “That may be something,” Yu said. “Can you give me more details, Yaqin?”
    “His name is Weng. He’s not that rich, or he wouldn’t stay at our hotel, but he has bucks, at least enough so that he’s capable of staying here for months at a time. And he has a green card, which is enough for many a Shanghai girl to have hooked up fast and furious. Anyway, they hit it off. People have seen them dining outside, her hand grasped in his.”
    “Have you seen them together?”
    “No, but I saw her sneaking into his room late one afternoon, about a month ago. It was not during her shift that day.” She added, “He was a realistic choice for the girl. He’s about fifteen years older, but he could have taken her to the United States.”
    “Have you noticed anything suspicious about him?”
    “Well, nothing that I am sure of. His family is still in Shanghai, but he chooses to stay at a hotel. Why? That’s beyond me. No one knows what kind of work he does, nor where his money comes from. The cost of a hotel for three or four months is a sizable sum.”
    “I talked to your manager the other day. He didn’t say anything about Weng or about his relationship with Jasmine.”
    “He may not know,” she said. “Besides, the hotel business has been affected by her murder. There may be no interest in drawing more public attention like that.”
    “Is Weng at the hotel right now?”
    “He came in from the States this morning. He has been shut up in the room ever since.”
    “I’ll come over immediately. If he comes out, tell him not to leave the hotel.” Yu said, “Are you sure he was in the United States for the last two weeks?”
    “When she died, he wasn’t here, but I’m not sure where he was. And he arrived with all his luggage this morning.”
    “Can you check his passport? Particularly the date of his latest entrance.”
    “That should be easy. He leaves his passport in a safety box here. I’ll check it out for you.” She added, “But I don’t want to be seen talking to or passing information to a cop.”
    “No problem. I understand. I won’t come in uniform.”
    Forty-five minutes later, Yu arrived at the hotel lobby dressed in a gray jacket Peiqin had bought him. No one seemed to recognize him. He soon saw Yaqin, a short woman wearing her hair in an old-fashioned knot, though probably only in her mid-forties. She sneaked him a photocopy of the passport. It showed that Weng left via Guangzhou the day Jasmine was murdered and came back only this morning. Weng would have hardly had the time for the first crime. Definitely not for the second.
    “Thank you, Yaqin,” he said. “Is