The Trinity Six. Charles Cumming

if accessed, would build up to an almost total picture of his personal and professional life. How does a person begin to pick his way through that?

      He double-clicked all of the documents on her desktop, one by one, moving across the field of files, none of which appeared to relate to the Cambridge investigation. To simplify things, he ran a hard drive search for ‘Edward Crane’ and ‘Thomas Neame’, but the results were meaningless. He tried ‘Philby’, ‘Blunt’, ‘Maclean’, ‘Burgess’ and ‘Cairncross’, but again drew a blank. There was clearly no first draft of Charlotte’s story, no interview transcripts, no notes. It was as if they had been wiped away.

      Towards midday, Gaddis became so frustrated that he sent Paul a text message with the question: Did C use a second computer? to which Paul replied: Not to my knowledge. None of her emails related to work on the story. Searches for ‘Cambridge’, ‘Neame’ and ‘Crane’ within Outlook also proved useless. He concluded that Charlotte must have been carrying around most of the research in her head.

      Towards two o’clock, Gaddis found a small, alphabetized box of files, designed as a portable case, in the far corner of the office. He opened it and began to go through her private papers: bank statements; details of her pension plan; letters from accountants. All of it would have to be given to Paul, who had been left with the task of completing probate. Another box contained cuttings from newspaper and magazine articles which Charlotte had written, dating back to the early 1990s, a gone-away world of Clinton and Lewinsky, of Rwanda and Timothy McVeigh.

      At last he discovered something which he was sure would start him on the path to Thomas Neame: a Sony digital recorder lodged in the inside pocket of a coat which Charlotte had left hanging behind the door of her office. Gaddis switched it on, but found only an old interview about Afghanistan. It was as if the Cambridge investigation had never taken place. Had she made a deliberate decision to write nothing down? What else could explain the complete absence of a paper trail?

      By three o’clock, Gaddis was hungry and stir crazy. He took out an entire drawer from her desk and carried it into the kitchen, where he microwaved a supermarket Chilli con Carne and ate it while picking through the contents. The drawer was awash in gas bills, half-finished strips of paracetamol, cheque books and rubber bands. Chaos. He was reminded of Holly’s flat and sent her a text message to which she did not respond.

      Finally, while mopping up the dregs of the chilli with a hunk of stale bread, he found an envelope of expenses receipts, dated within two months of Charlotte’s death. Gaddis pushed the plate to one side and poured the receipts, perhaps thirty or forty of them, on to the table. He might as well have been looking at grains of rice. How was a till receipt from WH Smith going to lead him to Edward Crane? He said to himself, in an audible whisper: ‘You’re an idiot’ and put the receipts back in the envelope. Then he found a beer in Paul’s fridge, drank it from the bottle and contemplated the possibility of going into the garden for a smoke. He had given up cigarettes twenty-four hours earlier. Was one more packet going to give him lung cancer? Would five quid break the bank? No.

      He drained the beer, took Paul’s house keys from the kitchen table and headed towards the front door. He would buy a packet of Camels, his usual brand, on Hampstead High Street and, when they were finished, quit for good. No point in spending a tortuous day in Charlotte’s house without the back-up of tobacco. It was counter-productive.

      As he was opening the front door, jingling a lighter against the loose change in his pocket, a gust of wind shot into the house, sending junk mail scattering down the corridor. Gaddis spotted one of Charlotte’s handbags on a hook behind the door. He closed the door, took the bag down and freed the brass catch. Her purse was inside, bulging with credit cards and cash. He took the purse out and held it in his hand. Of all the objects which had belonged to Charlotte that he had touched that day, this was the one to trigger his grief. A hoop of sadness came up through his body and he had to stop for a moment to compose himself. There was £120 in cash in the purse, as well as a Press ID card and several more receipts. He wondered if the credit cards had been cancelled. Should he do that himself and save Paul the trouble? Visible behind a plastic cover, perhaps so that Charlotte could press the purse against a ticket machine without the need to take it out, was an Oyster card. Thanks to the common room ravings of a colleague at UCL who was obsessed, to the point of paranoia, by the ‘surveillance society’, Gaddis knew that it was possible to go to any Tube station in London and to see a computer listing for the last ten journeys undertaken by Oyster. That gave him a plan. If he could discover where Charlotte had travelled in the last few days of her life, he might be able to match that information to details on her phone bills or expenses receipts. This would at least provide him with the possibility of a link to Thomas Neame.

      At Hampstead station he queued behind a backpacking German tourist and placed the Oyster on a reader at the ticket machine. What he saw intrigued him. The same five journeys, there and back, over a period of fifteen days, from Finchley Road station, which was a fifteen-minute walk from Charlotte’s house, to Rickmansworth, in the suburbs of northwest London. He found a Tube map and traced the simple journey north on the Metropolitan line. It would have taken about forty minutes. For some reason, this small triumph of amateur detection was enough to persuade him not to buy the cigarettes and Gaddis returned to the house with a renewed sense of purpose.

      He took the receipts from the envelope a second time, pouring them on to the kitchen table: WH Smith’s, Daunt Books, Transport for London. Some writing caught his eye: scrawled on the back of two receipts which were from the same pub in Chorleywood, Charlotte had written: Lunch C Somers. The dates matched the days on which she had travelled north from Finchley. Gaddis knew that Chorleywood and Rickmansworth were no more than a couple of miles apart. He went back outside and returned to the computer, running a search for the name ‘Somers’. Nothing came up. Just the same black hole of false leads and dead ends which had wiped out his morning.

      Perhaps she had made telephone calls to a landline in the Rickmansworth area? Gaddis typed ‘Dialling code for Rickmansworth’ into Google and wrote down the number: 01923. The same prefix was listed for Chorleywood. He then checked the results against an itemized phone bill which he had discovered while drinking a cup of coffee at her desk almost five hours earlier. Sure enough, in the three weeks of her journeys from Finchley, Charlotte had made half a dozen calls to the same 01923 number. Gaddis took his own phone from the pocket of his coat and dialled it.

      A woman answered, bored to the point of despair.

      ‘Mount Vernon Hospital.’

      Gaddis said ‘Hello?’ because he was unsure precisely what she had said and wanted it repeated.

      ‘Yes,’ she said, sounding impatient. ‘Mount Vernon Hospital.’

      He scribbled the name down. ‘Please. Yes. I’m looking for a patient of yours. Thomas Neame. Would it be possible to speak to him?’

      The line went dead. Gaddis assumed that he was being connected to a separate part of the hospital. If Neame answered, what the hell was he going to say? He hadn’t thought things through. He couldn’t even be sure that the old man would know what had happened to Charlotte. He would have to tell him about her heart attack and then somehow explain his interest in Edward Crane.

      ‘Sir?’ It was the receptionist again. Her tone was fractionally less hostile. ‘We don’t have a patient of that name here.’

      There didn’t seem to be any future in asking to check the spelling of ‘Neame’. Nor could he enquire about Somers. The receptionist might smell a rat. Instead Gaddis thanked her, hung up and called Paul at work.

      ‘Do you have a relative who works at the Mount Vernon Hospital in Rickmansworth?’

      ‘Come again?’

      ‘Rickmansworth. Chorleywood. Hertfordshire suburbs.’

      ‘Never been there in my life.’

      ‘What about Charlotte? Could she have had a relative up there or a friend that she was visiting?’

      ‘Not to my knowledge.’

      Somers was obviously the key. But was he a patient