He could remember it now, the shock of realization, the gaslight wavering on the paper as he opened it out on the table in his hotel bedroom and read the legend on the map. But he could not recall what else there had been, try as he might, sitting there now with the sun and wind on his face, and his eyes closed, attempting to re-create the past.

Of course there was profit in some land and not in other. But surely the investors had also checked? They must have representatives who were aware of that. It would have to have been cleverer, far subtler than simply a lie, whether the land were granite instead of clay, or chalk or conglomerate, or whatever the hill was actually composed of.

And always in the back of his mind there was the jumbled horror of something dark, unclear and violent, the rending of steel, the scream of tearing metal, sparks in the night, then flame, and through it all fear so dreadful it cramped the stomach and locked the muscles in pain.

But there seemed nothing to connect the two. Arrol Dundas had been convicted of fraud, guilty or not. There had been a crash which Monk seemed to remember, and shortly after Dundas’s death he had left merchant banking and gone into the police force, driven by the passion to serve justice in future, which had to mean he had believed with a passion that there had been injustice then.

But he could do nothing more here to help Katrina Harcus or learn any greater truth about Michael Dalgarno. If there were fraud at Baltimore and Sons, then Dalgarno was almost certainly involved in it, but it was merely profiting unjustly from land purchase. There was nothing to cause injury to anyone, except the loss of possible profit to the investors. That was yet to be proved, and speculation was always as likely to end in loss as in gain. He could call for an official audit if any evidence warranted it.

It was time he stopped evading the old truth that lay at the core of his fear. Remembered pieces were little help. He must use the detective skills he had refined so well. If he wanted to know it for a client, where would he begin were it himself and not Dalgarno that he were investigating for Katrina Harcus?

Begin with the known, facts that could be checked and proven without the possibility of misinterpretation. He knew the date on the work order with his own name on it that Katrina had handed to him with the others. That was proof that he had once worked for Baltimore and Sons, but not where, and not that he had had anything to do with the fraud for which Dundas had been convicted.

Could there be more than one fraud? No, too much of a coincidence.