Mrs. Ewart was answering the question as carefully and with as much detail as she could. "He had a long face," she began. "A narrow bridge to his nose, but his eyes were not small, and they were heavy-lidded." Suddenly she opened her own eyes very wide, as if startled. "They were light! His skin was sallow and his hair was black, at least it looked black in the streetlights. And his brows, too. But his eyes were light-blue, or gray. Blue, I think. And . . . his teeth . . ." Then she shivered, and there was a look of apology in her face, as if what she was going to say was foolish. "His eyeteeth were unusually pointed. He smiled when he explained the... the stain. I . . ." She gulped. "I suppose that was poor Mr. Havilland's blood?" She looked at Runcorn, waiting for his reaction, although it was inconceivable that it should matter to her. Yet Monk could not help but believe that it did. Had she seen that gentleness in Runcorn? Or was it just that she needed someone to understand the horror she felt?

Runcorn continued to probe. What about the man's clothes? Had he worn gloves? No. Had she noticed his hands? Strong and thin. Boots? She had no idea.

If she thought of anything else, he told her, she should send for him, and he gave her his card. Then they thanked her and left. Monk had barely spoken a word.

Even outside in the bright air, wind ice-edged off the river, Runcorn kept his face forward, refusing to meet Monk's eyes. There was no purpose in forcing communication where none was needed. Later they could discuss what each would do next. They walked side by side, heads down a little, collars high against the cold.

The only place Monk could begin was with the nature and opportunities of the man who had paid the assassin.

Was it Alan Argyll who had found him, or Toby? Or perhaps Six-smith had actually contacted him first, for the task he had claimed?

That was an obvious place to start. He could speak to toshers, who combed the sewers for lost valuables, or to gangers, who led the men who cleared the worst buildups of detritus and silt that blocked the narrower channels. They were all displaced. It would take a while before their services were needed, and there was no trade in which to earn their way in the meantime.

He was walking from the Wapping station towards one of the cut-and-cover excavations when Scuff caught up with him. The boy still had his new odd boots on and the coat that came to his shins, but now he also had a brimmed cloth cap that sat uncomfortably on his ears. The hat needed something inside the band to make it a little smaller. Monk wondered how he could tell Scuff this without hurting his feelings.

"Good morning," Monk said.

Scuff looked at him. "Yer doin' all right?"