"Yes," she capitulated. "Come with me and I will give you a list. It is only a guess, of course."

"Of course," he agreed.

Monk worked the rest of that day, and most of the following one, first with Callandra’s list of medicines, then seeing whom Cleo Anderson had visited and what illnesses afflicted them. He did not have to ask many questions among the sick and the poor. They were only too happy to speak well of a woman who seemed to have endless time and patience to care for their needs, and who so often brought them medicines the doctor had sent. No one questioned it or doubted where she had obtained the quinine, the morphine, or the other powders and infusions she brought. They were simply grateful.

The more he learned, the more Monk hated what he was doing. Time and again he stopped short of asking the final question which could have produced proof. He wrote nothing down. He had nothing witnessed and took no evidence of anything with him.

On the afternoon of the second day he turned his attention to Cleo Anderson herself, her home, her expenses, what she purchased and where. It had never occurred to him that she might ask any return for either the care she gave or the medicines she provided. Even so, he was startled to find how very frugal her life was, even more so than he would have expected from her nurse’s wages. Her clothes were worn thin and washed of almost all color. They fitted poorly and presumably had been given to her by grateful relatives of a patient who had died. Her food was of the simplest—again, often provided in the homes of those she visited: bread, oatmeal porridge, a little cheese and pickle. It seemed she frequently ate at the hospital and appeared glad of it.

The house was her own, a legacy from better times, but falling into disrepair and badly in need of reroofing.

No one knew her to drink or to gamble.

So where did her money go?

Monk had no doubt it went into the pocket of James Treadwell, at least so long as he had been alive. Since his death just two weeks before, Cleo Anderson had purchased a secondhand kitchen table and a new jug and bowl and two more towels, something she had not been known to do in several years.

Monk was in the street outside her house a little before half past four when he saw Michael Robb coming towards him, walking slowly as if he was tired and his feet were sore. He was obviously hot, and he looked deeply depressed. He stopped in front of Monk. "Were you going to tell me?" he asked.

There was no need for explanation. Monk did not know whether he would have told him or not, but he was quite certain he hated the fact that Robb knew. Perhaps it was inevitable, and when he had wrestled with it and grieved over it he would have told him, but he was not ready to do that yet.