The man with the gloating laugh enjoyed his work. He kept slapping Box’s sides and chattering in high-pitched Chinese. Only when she knew that this time she would drown for certain, when stars flared in the black tunnel that filled her head and her lungs were seared by fire, did he dart around and slide a narrow slat from under her. The water gushed out and she curled very nearly dead on the floor of Box. Everything hurt.

When her bowels opened, she barely noticed.

Sometimes she pinched her cheek to make sure she was still alive. Still Lydia Ivanova.

She was beginning to doubt it.

But this time there was no sound of dragging hosepipe. This time it was the scrape of something wooden across the floor and the flickering light grew brighter.

What now?

Focus. Breathe. Don’t cry.

Suddenly the world changed. The roof flew off. A hand reached in and grabbed her hair, wrenching it from its roots, hauling her to her feet. Her stiff body was sluggish and earned her a blow on the ear. She was staring into the face of an olive-skinned Chinese man with a pointed face and black eyes set close together. His teeth were red and for one crazy moment she thought it was blood, that he was eating some live creature, then she saw he was chewing on some dark red seeds that he held in his free hand.

He yanked her out of Box and she looked around her, eyes screwed up against the dim light. She was right. It was a cellar. Two rats paused in a corner and inspected her, whiskers twitching. Box was a metal cube raised on a wooden plinth with a drain underneath and a small ladder propped against its side. She fell down the ladder, her feet too numb to guide her.

But it took everything inside her just to walk upright. When she stumbled or hesitated the rope was tugged tight with such force, she was under no illusion about the man’s strength and knew her own body was a physical wreck. So. No. No escape yet. The narrow-faced man pushed open a door.

Warmth.

That was what hit her first. It flowed over her skin, silky golden waves of it, sucking out the cold from her bones. She wanted to weep with pleasure. She felt a sudden rush of gratitude toward her captors for giving her this warmth, but part of her mind insisted that was insane. She hated them. Hated.

Then came the noise. The room was so full of sound it made her head spin. Big voices. Boisterous laughter. It boomed inside her hollow brain and the bright lights cramped her eyeballs. She squinted, adjusting quickly, and tried to make out what kind of place she was in. A large high-ceilinged room, ornate carvings peering down at her from painted beams, red patterned tiles under her bare feet, small barred windows. The walls were covered in heavy embroidered drapes and lined with wooden settles. Full of Chinese faces. Jeering. Fingers pointing. Mouths spitting. Black figures everywhere. Too much black. Too much death.

The fact that she was wearing nothing except a primitive form of handcuffs and a rope around her neck did not distress her. She was beyond that. She cared no more about her nakedness than she would if she were standing in front of a pack of wild dogs.

A bunched fist swung lazily at her face. She ducked and it missed. The faces around the room split open into wide red caverns of laughter, but the man who had tried to strike her found no amusement in it. He was broad across the chest, solidly built, with a fleshy face and smooth oily skin. She was useless at guessing Chinese age, but he looked about thirty to her and carried himself with an air of authority. He had a high hairline and dark petulant lips. Oddly he wore a respectable black Western suit. It gave her hope. He stood in front of her and cursed in Chinese.

‘You the filthy bitch whore of the shit-eater without the fingers. ’ The English words startled her. ‘You lose fingers too. And eyes. And white putrid breasts. I feed to rats in cellar.’

The threats came not from the smooth-skinned man but from a young boy, no more than fourteen or fifteen years old with long unruly hair and nervous eyes, as he mouthed the words with no emotion of any kind. He stood behind the shoulder of the big man who was cursing her, and it dawned on her sluggish mind that the boy was only the interpreter, echoing his master’s words.

She switched her gaze back to the master and abruptly the cogs inside her brain turned faster. She recognised him. From the Chinese funeral Chang had taken her to. He was the one in white prostrating himself behind the coffin. Yuesheng’s brother, Feng Tu Hong’s son. It was Po Chu himself. She spat at him, the man who tortured Chang An Lo. He hit her hard and growled something. ‘Ni ei xi xue hui vhun.’

‘You learn respect,’ the boy translated.

‘Release me,’ she hissed, tasting blood inside her cheek.

‘You answer questions.’

‘I am the daughter of an important British newspaper tycoon. Release me immediately or the British Army will come with their rifles to . . .’

‘Silence,’ the boy echoed.

The man’s hand seized a hank of her hair and twisted her head back. He shouted in her face, his breath sour with alcohol, and his dark gaze roamed over her breasts and throat, down to her thighs and . . . She shut her eyes to block him out.

That was when he released her hair, reached down, and yanked out a piece of her pubic hair. The pain was sharp but brief and she didn’t cry out. He held up the copper curl as a trophy for all to see, and the men around the walls cheered. Instead she thought of how Chang An Lo had twirled those same hairs around his good fingers and called them her fox flames. But what disturbed her more was the glimpse she got of her forearm when she struggled to free her hands. The skin was covered in bite marks. They were the marks of her own teeth where in the dark inside Box she’d been gnawing at a limb. Like a fox in a trap. That frightened her.

She made herself stand straight. ‘Sir Edward Carlisle will skin you all alive for this.’

The boy translated. Po Chu laughed. ‘Zai na? Where Chang An Lo?’

‘I don’t know.’

‘Yes. You know. You say.’

‘No. I don’t know. He ran away when the Kuomintang troops came.’

‘You lie.’

‘No. Bu.’

‘Yes.’

Each time the words came from Po Chu, with the boy echoing softly in English.

‘Tell truth.’

This time the question came with a slap.

‘Tell truth.’ Another slap. ‘Tell truth.’ Slap. Slap. Slap. Again. Again. She lost count.

Her lip split. The space inside her head turned red. Her ears hummed.

Slap. Slap.

Harder. A knife point nicked the corner of her left eyelid and started to slide along the bottom of her eye as if to pop it out.

‘He’s dead.’ She screamed it.

The knife froze. The slaps ceased. She breathed. Small panicky gasps.

‘When dead?’ Po Chu demanded. In English. But she barely noticed. Her mind was struggling.

‘How dead?’ He ran the knife blade in a circle around one breast, and she felt the sting and the trickle of blood.

‘From sickness.’

‘Shen meshi hou? When?’

‘On Saturday. I took him to the docks. Nursed him . . . In an old shack . . . he died.’ Tears started to pour down her cheeks. It wasn’t hard.

The boy translated, but it was the tears that seemed to convince Po Chu. He stepped back with a shrewd smile, flicked the knife spinning up into the air, and as it fell caught its ivory handle with an easy sweep of his fist. He stared at her.

‘Come,’ the boy said.

Po Chu seized the rope attached to her neck and dragged her across the room toward a screen that closed off one corner. Her eyes fixed on its panels inlaid with lapis and coral, ivory and mother-of-pearl, and she burned them into her memory. If this bastard was going to blind her, she had to make her last moment of sight go a long way.

‘See, gi nu.’ Po Chu thrust the screen aside.

She saw. And wished she’d drowned inside Box.

On a table, neatly laid out like precision instruments of surgery in an operating theatre, were two rows of tools. Heavy tongs and blades, some serrated and some with needle-sharp points, and beside them lay small blunt hammers, chains and leather collars and cuffs. Her eye was drawn to a piece of iron with a long narrow shovel end and stout wooden handle. Not in her wildest dreams could she begin to guess its purpose.

Her inner organs turned to liquid. Nothing worked anymore. Her breathing stopped. She felt warm fluid dribble down the backs of her thighs and she knew her body was trying to flush out the fear. She felt no shame. She’d left that behind long ago.

‘See, gi nu,’ Po Chu repeated. ‘Putrid whore. See.’

Her ears still worked. They heard the anticipation in his voice.

‘Tell truth.’

She nodded.

‘Where Chang An Lo?’

‘Dead.’

He picked up a pair of heavy iron-teethed tweezers, casually weighed them in his hand, lowered his thick black eyebrows in a frown of concentration, and clamped the metal teeth round her nipple. He squeezed.

She screamed.

Blood, bright red like paint. A burning pain in her breast. She screamed her anger and her hatred at him, bellowed it in his face, and would have hurled herself at him and bitten his eyes out if the rope around her neck had not been pulled tight from behind.

‘Good.’ Po Chu smiled coldly, a spatter of her blood on his chin. ‘Now tell truth.’