She did not argue, but her bright eyes, half hidden by wrinkles of weathered skin, were sharp with amusement. “So what are ye wantin’ then?” she said bluntly.

He smiled widely at her. He had charm when he wanted it. “You’ll be knowing that Mr. Baltimore was murdered in Leather Lane a few days ago,” he said candidly. He knew the folly of insulting her wits. Anyone who served in the street to her age was nobody’s fool.

“Sure an’ doesn’t all London know it?” she replied. Her expression betrayed her contempt of him, probably not for his morals but for his hypocrisy.

“You’ll have seen him coming and going,” he went on, nodding his head toward the Baltimore house, thirty yards away.

“Of course I have, bad cess to him,” she responded. “Not a halfpenny on a cold day, that one!” Perhaps it was a warning to him that she had no interest in helping to find his killer. An honest expression or a ploy to be paid now for help, it did not matter; either way if she told him anything he was happy to reward her for it.

“I am interested in the possibility that he was killed by someone who knew him,” he admitted. “Did you see him that evening? Any idea what time he left home, and if he was alone or with anyone?”

She looked at him steadily, weighing him up.

He looked back, wondering whether she wanted money, or if poorly handled it would offend her pride.

“It would be very agreeable to find it was nothing to do with the women in Leather Lane,” he remarked.

Real interest flashed in her eyes. “It would an’ all,” she agreed. “But even if I saw him leave, an’ others follow after him, that doesn’t mean to say they went further than the end o’ the street, now does it?”

“No, it doesn’t,” he said, trying to keep the emotion out of his voice. He did not even know if he was excited or afraid. He did not want Dalgarno guilty! It was only the keenness of a scent which caught his eagerness, a thread of truth at last among all the knots and ends. “But if I knew which way they went then I might be able to find the cabbie who picked them up.”

“Josiah Wardrup,” she said without a flicker. “Saw him myself, I did. Almost like he was expectin’ the old bastard.”

“How very interesting,” Monk said sincerely. “Perhaps he was? In fact, perhaps Mr. Baltimore went that way, at that time, quite regularly?”

She made a low sound of appreciation in the back of her throat. “It’s clever you are, now isn’t it?”

“Oh, now and then,” he agreed. He fished in his pocket and brought out two shillings. “I think I’ll reward myself with a few pence worth of brandy balls.”