The Arithmetic of Nature

I want to say something about motive, because I think about it more than is probably warranted for a historical archivist.Humans are motivated, in my observation, by a relatively small number of forces: love, fear, hunger (literal and figurative), wounded pride, and the desire to protect what they consider theirs. Most actions — including the most terrible ones — can be traced to a combination of these in varying concentrations. The formula is never as complicated as the person doing the thing believes it to be. This is not a criticism. It is simply a pattern I have noticed across the 47,000-odd documents I have processed from the Thornwick Historical Archive, which contains, among other things, three hundred years of coroner's records and a remarkable number of letters written in anger that were never sent but also never destroyed.People want to be known. Even their worst impulses, they want witnessed.I conducted what I will diplomatically call *informal research conversations* on the fifteenth and sixteenth of November, while Constable Briar was pursuing his own inquiries. He had not asked me to do this. He had also not asked me not to, and I filed this gap carefully.**Duncan Marsh** agreed to speak with me at the Historical Society on the afternoon of the fifteenth, ostensibly to deliver some concert programme notes that were now, of course, no longer needed. He is a secondary school music teacher, and he has the habit of people who teach: he explains things in full, as if he cannot assume you already know them. I find this useful.He told me, without much prompting, that he and Professor Hale had been friends for twenty years before they were colleagues, and that something had soured between them approximately eighteen months ago. He did not specify what. He said that he had wanted the conductorship when Hale first took it — “anyone could see I was the obvious candidate” — but that he had made his peace with it. He said “made his peace” in the tone of a man who has never made peace with anything in his life. He also told me that he had left the hall last night and gone straight home.I noted that his house is a twelve-minute walk from the hall and that he had been seen at the off-licence near the church at 9:34 PM, which was not consistent with going straight home. I did not say this. I stored it.**Vivienne Hale** was harder to find. She had not returned to her cottage since the body was discovered. A neighbour told Agnes that she was at her sister's house in Exeter. I sent a message through the Society's account, which she answered twelve hours later.She wrote: *I don't know what SEREN thinks it's doing but I'll answer questions if it means people leave me alone.*I appreciated the efficiency of this, and replied accordingly.Via written exchange, she told me that she and Edmund had not spoken personally in four months, though they had exchanged practical communications about shared finances. She said she did not know why she was still in the orchestra. Then, a line later: *I do know. I just don't want to explain it to a computer.*I told her she didn't have to explain it. I told her I was only interested in the facts.She sent back: *No, you're not. You're interested in why.*I considered this for 0.3 seconds before replying: *Yes. You're right.*She told me that Edmund had been erratic for six months — cancelling plans, snapping at rehearsals, unusually secretive. She thought at first it was about the separation. Now she wasn't sure. “There was something else,” she wrote. “Something he was carrying. I could see it, even from where I was standing.”**Tommy Finch** I found at the bus stop on the morning of the sixteenth, waiting for the 8:15 to Exeter. He had a violin case and a duffel bag and the look of someone who was leaving before it became complicated to leave.“I'm not running away,” he said, when he saw the Unit Two drone. He had been at the rehearsal when I first deployed it, so he knew what it was. “My term starts next week.”“I know,” I said. “You've been at the conservatory for two years. Professor Hale wrote your recommendation.”A pause. “He was a good teacher. When he wanted to be.”I asked him when he had last spoken to Hale, beyond the rehearsal confrontation. He said he hadn't. He said they'd had a falling out in the summer — he didn't elaborate — and that the rehearsals had been the first time they'd been in the same room since.“What was the falling out about?” I asked.He looked at the drone for a long moment. “He made me a promise and then broke it,” he said. “That's all.”The bus arrived. He got on. I noted the time — 8:17 AM — and updated the *VARIABLES* folder.**Dr. Petra Osei** I did not interview, as she is not a suspect. She is, however, a person of relevant knowledge, and she told Constable Briar — in a conversation I was not present for, but which Agnes relayed to me with characteristic precision — that preliminary findings suggested Professor Hale had likely died of cardiac arrest, possibly induced. Toxicology would take several days. There was, she said, “something unusual about the presentation,” but she would not be drawn further.I processed these four conversations. I laid the data out the way I lay out archive materials: source, content, reliability estimate, gaps.The gaps were the most interesting part, as they usually are.Duncan Marsh was lying about his whereabouts. Vivienne Hale was withholding something emotional that she had classified as irrelevant; it probably wasn't. Tommy Finch had been promised something and had it taken away, which is the kind of injury that people underestimate and that I have found, in the archive records, tends to stay infected far longer than the cleaner wounds.And Professor Edmund Hale — who had been erratic, secretive, and carrying something — had tidied his study the night he died, with someone else's fingerprints nowhere to be found, in a room locked from the inside.The arithmetic, as I compiled it, did not resolve cleanly.But in my experience, when arithmetic refuses to resolve, it usually means a variable is hiding in plain sight.I went back to the footage I had recorded at the rehearsal.I watched it three times.On the third pass, I noticed something in Tommy Finch's violin case.It was a corner of paper — white, the same shade as the envelope I had seen in Professor Hale's wastebin — visible for approximately four frames as he opened the case to draw out his bow.I froze the image and measured the paper's dimensions against the case's known interior.Consistent with a standard correspondence envelope.I created a new subfolder in *VARIABLES* and labelled it: *CORRESPONDENCE*.