She shook her head again. “I don’t know, but I don’t think Lena was his girl in that sense. She was not a concubine. I don’t doubt that he basically owned her, and paid for her life, but I’m not sure what his purpose was.”

Caprisi was sucking the end of his pencil.

“Lu has an intelligence network,” Field said, assuming this is what the woman was driving at.

She turned to him. “Yes.”

“Lena gave him intelligence on the activities of Bolsheviks like Borodin?”

“Yes.”

“Didn’t the Bolsheviks find her suspect because of her past?”

“Everyone can be anyone in Shanghai, Detective.”

Field looked at Caprisi, who produced Lena’s notebook. “Ships, dates, and destinations,” Caprisi said.

She looked at it and handed it back. “It means nothing to me.”

“Opium, possibly.”

She shook her head curtly.

Caprisi folded it and put it into his pocket. “So if she was Lu’s girl, she wasn’t sleeping around. I mean-”

“Not unless he instructed her to.”

“Unless he gave her to someone?”

“Yes.”

“And did he?”

“I believe so. I don’t know who, but I never saw her so happy.”

Caprisi leaned back in his chair again, looking around the room. Field thought the woman probably knew more than she was letting on.

“How was her… mood… since she moved into Lu’s apartment?” Caprisi asked. “Three months ago, you say?”

“She still came, still danced, but there was something different.”

“To do with Lu, or this new man?”

“I do not know, but she talked of escape more often, with more conviction and… a sense of confidence. I think she felt she’d found some… some route to a new beginning, to whatever it was she sought. One of the last things she said to me, the day before yesterday, was that she had written to her sister and asked her to come to Shanghai.”

“What’s the relevance of that?”

“She would never have wanted her sister to know about her life here. It could only have been because she was planning that they both leave.”

“Did she have any close friends-a boyfriend, perhaps? Outside of these… business arrangements.”

“Sergei, yes.”

“Sergei?”

“He plays in the band here.”

Caprisi looked at his notepad. “He didn’t mind… didn’t object to what Lena was up to?”

“He understood.”

“Understanding doesn’t mean forgiving,” Caprisi said, leaning forward. “There cannot be many men who could tolerate the idea of their girl selling herself.”

“I’m not sure that was the basis of their relationship. I think it was more… fraternal.” Mrs. Orlov looked down, crossing her hands on her lap. “Anyway, if you’re thinking of him as a suspect, I think I can save you the time. He was here all night.”

“From when until when?” Caprisi asked.

“From around seven until about six in the morning.”

“Onstage all the time?”

“Yes, or sitting in the band’s table to the side of the stage.”

“Where would we find him?”

The woman turned to her wooden desk and rifled through the papers until she found a small black leather book, which she opened. She put on her glasses and wrote the name and address in a smooth, flowing hand. She turned and handed the piece of paper to Field, holding it between two long fingers, looking at him through hooded eyes. “Sergei Stanislevich. He lives in Little Russia, on Avenue Joffre.”

Field thought she was much older than he’d first guessed.

“Good luck, gentlemen.”

They both stood. Caprisi thanked her and they walked down the stairs to the ballroom. As they reached it, Field muttered that he’d forgotten something and darted back before Caprisi had a chance to ask him what.

The woman had not moved and did not seem surprised to see him. He was a little breathless from the heat and the sudden exertion. “Natasha Medvedev. They were friends. What are her circumstances?”

The woman stared at him, as if instantly divining his purpose and motivation, though he wasn’t sure he understood these himself.

“Her circumstances?”

“Yes, she lives opposite Lena. Her flat is also owned by-”

“Her circumstances are the most… Of all the girls here, Natasha’s are the most impaired,” she said, half in sorrow, it seemed to him, and half in warning.

Field heard Caprisi call up from below.

“What do you mean impaired?” Field asked.

She shook her head. “Your friend is calling you.”

Field turned around and came to the top of the stairs. “Dropped my pen,” he said, but Caprisi’s look told him he knew differently.

When they got back into the car, Caprisi was looking at his notes.

“So we know that Lu gave Lena to someone,” Field said. “This man murdered her and Lu covered it up.”

Caprisi stared out of the window. “You’re jumping too far ahead. It’s still possible that Lu murdered her himself, or one of his men did.”

“But what about Maretsky saying that it was sexual, motivated by extreme anger?”

“Well…” Caprisi sighed, pulling up the band of his trousers. They still hadn’t moved anywhere. The driver waited patiently for directions. “If Lu is covering up for someone, then he must have a damned good reason.”

“Should we go and see him now?”

“We can’t. Macleod is talking to the French. There will be hell to pay if we go to Lu in the Concession without applying through the proper channels. Customs,” Caprisi said, tapping the back of the driver’s seat. He looked at Field. “I want to talk to this man Sergei as well.”

Field settled back, trying to suppress the nausea that had been threatening to overwhelm him all morning. He wound down the window to allow some air in, though it was fetid rather than fresh.

They turned onto the Bund and Field looked out at the sampans, junks, and steamers that plowed the choppy waters. As they rounded the last bend in the river, he recalled the thrill of his first sight of the Bund-its giant buildings rising above a sea of patchwork sails.

A liner coming in toward the shore hooted loudly, a thick plume of smoke from its central funnel twisting up into the clear sky.

“We ought to talk to Borodin,” Field said.

“Yes.”

The wharf in front of the Customs House was teeming with life, a sea of white straw and dark felt trilbies.

A ship had just arrived from Europe or America, its passengers standing in groups on the dock, fanning themselves against the heat and trying to prevent overenthusiastic coolies making off with their luggage. It was noisy and chaotic, and as they got out of the car, Field found himself smiling at the expectant, hurried stride of residents and the anxious faces of those they were coming to meet.

The floor beneath them was filthy with rotten fruit and vegetables. He bumped into an American woman as she rushed headlong into the arms of a man with a cry of “Anthony!”

Caprisi led the way through the gate and up a long iron staircase. A small Chinese stood at the top, his long queue hanging down over the back of a green silk jacket. He did not turn around as they passed.

The office they entered was a flimsy wooden structure, which looked as though it wouldn’t survive a light breeze, let alone the ferocity of a typhoon. Two more Chinese in long tunics were locked in a heated argument with a corpulent European who sat behind a desk. He waved his hand at them imperiously, concluding the argument, and after some hesitation, they turned and left, their faces impassive.

“CID,” Caprisi said. The man’s face softened. He picked up a white towel on the desk beside him and wiped his face. He had, Field noticed, very poor skin.

“Inspector Jenkins,” he said, offering them each a chubby hand. Standing, he ushered them through to an airless office at the back, where an electric desk fan was riffling a pile of papers held down by a glass weight.