And he nodded and stretched out his arm for the first of many files.

When I left, three and a half hours later, my mind was so taken up with balance sheets and legal language that I was at the street before I remembered, and turned back to the office. Norbert's secretary looked up at my entrance.

“Sorry,” I told her, “I forgot to ask, has a letter come for me?”

“Nothing today, Miss Russell.”

I reminded myself that the United States postal system was not the English one, and that a letter posted one afternoon might not generate an overnight response, even within the city limits.

Perhaps Dr Ginzberg was too busy to speak with an old patient? No, that I could not imagine. She might be out of town.

If I hadn't heard from her by tomorrow, I decided, I would travel across town to her house and see if she was there. I wanted badly to see her, to let her know that I had done well, that I was well.

And perhaps to ask her how it was that a person could forget half her life.

At something of an impasse, I watched a trolley rattle past, considering my options. I could go to the house and join Holmes in his examination of the fireplace's burnt papers. Or I could interview the old woman and her halfwit nephew across the street, to pin down the date of the March intruders. Or I could see what I could discover about Mah and Micah on my own, without waiting for Norbert.

I retraced my steps to the hotel for the photograph and for directions, then followed the route I had wandered in a daze three days before. Soon I was standing at the gates of Chinatown.

Chapter Five

Chapter Five

San Francisco's Chinatown had burnt to the ground in 1906; the blaze had scoured the infamous district of its noxious cellars and by-ways—a part of my sense of dissonance two days before had been merely the change in stage sets, that the neighbourhood which had always borne a trace of lingering wickedness and the sensation of things scuttling out of sight was now a place of gaudy chop-suey restaurants and tourist gee-gaws. Why, the streets smelt more of spices and incense than they did of rotting fruit.

Not that the place looked artificial: The hotchpotch of buildings was so hung about with extraneous pavement stalls and the grime of use that a person had to look closely to note the uniformity of building materials and the relative lack of wear, to see that they were none of them old enough to have seen the century's turn.