The police boat came alongside the lighter. Again two armed men boarded, and came back moments later, bleak-faced and shaking their heads. This time Monk swore. Phillips had not gone up the sides onto the schooner, he was certain of that. No matter how agile, a man could not climb the ropes swiftly enough in the few minutes he had been out of sight. No lighter had passed them going to the north bank. It could only have been to the south.

Angry, rowing with tight-knotted shoulders, the men sent the boat straight around the stern of the schooner into the wash of a stream of barges going upriver. They bucked and veered, slapping hard down into the water and sending up spray. Monk clung on to the sides, snarling between his teeth as he saw another lighter going south to Rotherhithe.

Orme saw it at the same moment, and gave the order.

They wove through the traffic. A ferry crossed swiftly in front of them, passengers crouched against the wind; a pleasure boat sent snatches of music into the air. This time the lighter made it to the dockside only twenty yards ahead of them, and they saw Phillips's agile figure, hair and coattails flying, jump from the stern as they passed the East Lane Stairs. He landed on the lowest step, which was slimed over from the tide. He teetered for a moment, arms wheeling, and then fell sideways, hard against the stone wall green with weed. It must have hurt, but he knew the police boat was not far behind him, and fear must have spurred him to scramble to his hands and knees and clamber upwards. It was a maneuver utterly without dignity, and a couple of lightermen jeered at him, but it was extremely rapid. By the time the police boat jarred against the stone, Phillips was at the top on the dry surface. He sprinted towards the Fore and Aft Dock with its crates of pottery from Spain, dumped haphazardly amid dark brown barrels and lighter piles of unfinished timber. The stench of hides was thick in the air, mixed with the sickening sweetness of raw sugar and the heady aroma of spices. Beyond that was the Bermondsey Road, and a whole network of streets and alleys, doss-houses, pawnshops, chandleries, taverns, and brothels.

Monk hesitated only a moment, fearing wrenched ankles, the howls of laughter from the dockers and lightermen if he actually fell into the river, and how idiotic he would feel if Phillips escaped because his own men had had to stop to fish him out. There was no time for such weighing and judging. He stood up, felt the boat pitch sideways, and launched himself towards the steps.

He landed awkwardly. His hands hit stone and weed, but his one goal kept him going. He slipped on to one knee, cracking it hard on the ledge of the next rise. Pain shot through him, but no numbness to prevent him from straightening up and climbing behind Phillips, almost as if he had meant to land as he did.

He reached the top of the steps and saw Phillips thirty feet ahead, running towards a stack of dark, wooden barrels and the winch beyond it. The lumpers unloading more from a lighter below took no notice at all. Some of them were bare-chested in the sun, skin glistening with sweat.

Monk ran across the open space. Then he hesitated when he reached the barrels, knowing Phillips could be just behind them, at best with a length of wood or pipe, at worst a blade. Instead he swung around and went along the length of the stack and around the farther side.

Phillips must have counted on exactly that. He was climbing the long barrier of a pile of bales, going up it as an able seaman might climb a spar, hand over hand, easily. He looked back once, his mouth pulled wide in a sneer, then heaved himself over the top and stopped just for an instant before dropping down the far side.

Monk had no choice but to follow, or lose him. Phillips might leave his wretched boat, find some hovel on the bank for a while, then reappear in half a year, and in the meantime God knew how many more boys would suffer, or even be killed.

Monk shinned awkwardly up the bales, more slowly than Phillips, and reached the top with relief. He crawled over to the far edge and looked down. It was a long drop, perhaps fifteen feet. Phillips was in the distance, making for more mounds of cargo, casks of wine, cases of spice or tobacco.

Monk was not going to risk the jump. A broken ankle would lose him Phillips altogether. Instead he lowered himself, clung for a moment by his hands, then let go and fell the rest of the way. He turned and sprinted, reaching the casks of wine just as Phillips bolted across an open patch of stone towards the shadowed overhang of a cargo ship moored close up to the wharf. Its ropes were trailing, a crane beside her, a load of timber being lowered as they watched.

A horse-drawn wagon moved closer, wheels rumbling on the uneven stone. A gang of lumpers was walking towards the crane. A couple of idlers argued over what looked like a piece of paper. Everywhere there was noise: men shouting, the cry of gulls, the clang of chains, the creak of wood, the constant slap of river water against the stone. There was the incessant movement of the sun reflected on the water, sharp and glittering. The huge moored ships rose and fell. Men in grays and browns toiled at a score of tasks. Smells filled the air: river mud thick and sour, the harsh cleanness of salt, the sickly sweetness of raw sugar, the stench of hides and fish and ships’ bilges, and, a few yards ahead, the bewitching perfume of spices.

Monk took a chance. Phillips wouldn't try for the ship; he would be too exposed as he went up the side, like a black fly on a brown wall. He would head the other way, and disappear into the alleys.

Or would he bluff? Double bluff?

Orme was on Monk's heels.

Monk headed towards the alley entrance between the warehouses. Orme drew in a breath, and then followed him. The third policeman stayed on the quayside. He had done this sort of thing often enough to know men could double back. He would be waiting.

The alley, which was no more than six feet wide, went down steps, then twisted one way, then the other. The stink of urine was sharp in Monk's nose. There was a chandler's shop to the right, its narrow doorway surrounded by coils of rope, ships’ lanterns, wooden cleats, and a bucket full of hard-bristle brushes.

It was not far enough into the alley for Phillips to hide. Monk went past it. There was a paint shop next. He could see through the windows that it was empty inside. Orme was on his heels.

“Next alley's blind,” Orme said quietly. “He could be up that waiting for us.” It was a warning. Phillips had a knife, and would not hesitate to use it. “He's facing the gallows,” he went on. “The moment we get the manacles on it's the beginning of the end for him. He knows that.”

Monk found himself smiling. They were close now, so very close. “I know,” he said almost under his breath. “Believe me, I've never wanted any villain more than I want this one.”

Orme did not reply. They walked forward slowly. There was movement ahead of them, the sound of scratching on the stones. Orme's hand went to his pistol.

A brown rat shot out of a side passage and passed within a yard of them. There was a gasp somewhere ahead, then a curse. Phillips?

There was no stirring in the air. It was dark, and the smell was growing worse with the mix of stale beer from a nearby tavern. Monk moved more quickly. Phillips would not be slowed by any of this. Everything he had to fear was behind him.

The alley divided, the left going back towards the quayside, the right into a further warren of byways. There was a doss-house to the right. A man slouched in the doorway, one eye blind, his stomach bulging over his trousers, an old top hat balanced crookedly on his head.

Would Phillips have gone in there? Monk suddenly realized how many friends Phillips might have in these places: profiteers dependent on his business, suppliers, and hangers-on.