“Only millions?”

“Don’t interrupt. It seems like millions anyway. But among the letters sent to me was one that seems to me to show interesting possibilities. It was anonymous, of course.” He pulled an envelope out of his pocket. “Postmarked EC4 . That doesn’t help much. One of the busiest postal districts in the city. Typewritten on cheap paper. ‘If you want to get to the bottom of the job you’re on, ask Mrs. G. if she has managed to pay her bookmaker’s accounts yet.’ What do you think of that, Moreland? ‘ Mrs. G. ’ is Mrs. Gertstein I suppose. She’s a lady I haven’t seen yet. Been away, country house visiting or something.”