“Her or Irina. He won’t be as prepared for questions about them. He knows we’ve got nothing to link him with Lena Orlov’s murder, but the others he may be less confident about.”

“What about Macleod?”

Caprisi had a stubborn set to his chin. “He can say he didn’t know we were doing it. As you’ve said, there may not be much time.”

“I thought you said we should be careful.”

“We can wait until another girl is killed, if you like.”

Field shook his head.

“Tough questioning,” Caprisi said, “might at least make him more cautious. He’ll surely be in less of a hurry to kill again if he thinks we are close to him.”

“And what about Delancey’s?”

“What about it?”

“Perhaps we should begin by finding out exactly how cruel Lewis really is.”

Caprisi thought about this. “Yes,” he said.

The iron-framed door of Delancey’s was shut and no one answered the bell, so they had to walk down a dark side alley beneath a huge metal water tank in order to gain access.

The Chinese secretary sitting at an untidy desk in the back office looked as if she would scream when they walked in. The door through to the stage was open, the smell of alcohol and cigarettes pervasive even in here. Two girls were sitting on the edge of the stage and turned nervously in their direction. Field was about to ask where the manager was when a short Chinese man appeared behind them. He had greasy black hair and sallow, pockmarked skin. He wore a dark pinstripe suit and two-tone shoes.

“Help you?” His voice was higher-pitched than Field had expected, and “help” sounded more like “hep.”

Caprisi looked at him as though he were a piece of excrement. “Detective Caprisi,” he said. “And this is Detective Field from Special Branch.”

The man looked even more frightened than his secretary.

“Charles Lewis is one of your clients.”

The man looked nervously from Caprisi to Field and back again.

“I’d like to speak to some of your girls.” Caprisi walked toward the door and out onto the stage.

The manager was rooted to the spot for a moment, but then fluttered around Caprisi like an anxious bird. “You cannot,” he kept saying, but Caprisi ignored him.

The American came down the stage and stood in front of two girls. If this club exuded a certain seedy glamour at night, it now appeared merely sad. The girls looked dirty and tired.

“You both know Charles Lewis.” Caprisi spoke in English. Field knew it was for his benefit.

The girls gave no sign of any acknowledgment. Field did not recognize their faces.

“Have either of you been with him?”

They stared at the floor.

“We are investigating a series of murders of young women, and we need to know whether Mr. Lewis has ever shown violence to any of you.” Caprisi repeated himself in Shanghainese. “We know he likes to tie girls up. To use handcuffs. We know he likes to beat girls.”

“You canno, must no,” the manager repeated in English, the ts at the end of the words lost.

“Mr. Field,” Caprisi said.

Field took a pace forward. “I’m afraid we believe that this establishment has been employed for the purpose of distributing Bolshevik propaganda.” Field repeated the last part of this sentence in halting Shanghainese. Caprisi corrected him. Field took out his revolver. “You will be handed over to the Chinese authorities; they are waiting for you.”

Field stepped to the side and pushed the manager roughly toward the door. Caprisi tugged the two girls to their feet by the neck of their dresses. It took a moment for the message to sink in, and then both girls screamed. The manager shook his head but was unable to utter a word. “Taipan,” he managed to say. “Taipan.”

Field pointed the revolver at his chest. “Have any of the girls here disappeared?” Caprisi asked. “Or has he ever met any of them outside of this club?”

The manager shook his head so violently Field thought it might fall off. He looked at the girls, but they didn’t add anything.

“He likes to handcuff the girls?”

The manager nodded. Both the girls looked down.

“Sometimes he hits them?”

The manager nodded again.

“Always,” the girl on the right said.

Caprisi turned to her. “What does he do exactly?”

“He uses handcuffs to the bed,” she said in Shanghainese, clearly enough for Field to understand. “Then he likes to hurt.”

“Does he require you to wear certain clothes?”

“He likes underclothes.” She lifted her dress to reveal a stained stocking.

“What form does the violence take?”

She didn’t understand this question and looked at the other girl, who indicated, with the flat of her hand against her face, that he liked to slap them.

“But he has never taken it further than that? He has never asked to meet any of the girls outside of the club?”

She shook her head.

“There have been no unexplained disappearances?”

She shook her head again.

“Have any of the girls died this year in any circumstances?”

“No,” she said.

“How much violence does he like to inflict?”

The girl looked down again and Caprisi glanced over toward Field, shaking his head.

The Fraser’s headquarters was on the Bund. A uniformed security guard took them from the reception desk, across the wide marble lobby, to the lifts.

Lewis’s office on the top floor reminded Field of the private room at the Hong Kong Shanghai Bank, except that the windows were bigger here, affording a still more panoramic view of the bend in the river. Lewis’s desk faced the water and he sat in a leather chair, invisible save for his feet on the desk.

Field looked out beyond him at a line of junks on the far side of the river that appeared to be sailing tied together. They bobbed up and down violently, their patchwork sails tilting to and fro like fans. A thick plume of smoke from another steamer cut a jagged line through the sky. Field could see the passengers on deck and sticking their heads through dirty portholes. New arrivals, he thought, feeling that his own seemed like years, rather than months, ago.

When Lewis finally replaced the receiver, he swung round, dropping his legs to the floor. He stood and walked over to the sideboard. He was in a vest and shirtsleeves, and he moved aggressively. “This had better be good. Drink, gentlemen?”

“No,” Caprisi said. “Thank you.”

“Never drink on duty?”

“Something like that. The shipments go the day after tomorrow. Will you be monitoring them?”

Lewis looked at Caprisi, and then at Field, as if they were insane. “I’m sorry, but-”

“We have a witness,” Caprisi said. He looked as if he were going to step forward and thump him. “A witness who saw you entering Natalya Simonov’s house on the night of her murder.”

Lewis poured himself a whiskey. A muscle in his cheek was twitching, and he scratched the end of his long nose with an elegantly manicured fingernail. “I haven’t the faintest idea what you’re talking about.”

“You claim you’ve never heard of a Natalya Simonov?” Caprisi pulled out his notebook.

Lewis was still being icily polite. “If you would care to explain, Officer, then perhaps I could help you.”

“I’m sure you know that Natayla Simonov was the Orlov killer’s previous victim. We know you were seeing her, and have an eyewitness account of you going into her apartment on the night of her murder.”

“Should I call a lawyer?”

“It is your prerogative.”

“That was a joke, Officer.” Lewis took out his cigarettes, lit one, and then threw the case to Field. “I’m afraid I have no idea who your Natalya is.”

“She’s Natasha Medvedev’s sister,” Field said, without having intended to.

“Poor old her.”

“So you knew her?” Caprisi asked.

“No.”

“But you know Natasha Medvedev?”

Lewis smiled. “There are a lot of fish in the sea, Officer.”