She is reading the news on her phone at Westmarket Central, platform six, eight-fourteen on a Tuesday morning, and she does not see the image.
She does not see it because she is not looking at the platform screens. She is looking at her phone, which is in safe-mode by default, which means the lead news photo of the morning has loaded as a one-sentence text description. Sunrise over the Adriatic, Trieste, captured by a freelance photographer. She does not need to see the photo to know it is beautiful. She believes it is beautiful. She scrolls.
The platform screens are showing what she will later not remember they were showing. A travel ad. A maintenance advisory for the northbound line. A municipal art installation called Bloom that the city has promoted for six weeks, a slow algorithmic generation of floral patterns that resolve and dissolve in the manner of a stereogram, except that they do not resolve into anything in particular. It is meant to be soothing. The artist’s name is on a placard at the end of the platform. She has never read it. She will never read it.
The eight-fourteen comes in. She gets on.
The image is in her field of vision, the case file will later determine, between eleven and fourteen seconds, depending on the angle of her approach. She does not look at it directly. She does not need to. The encoding does not require attention. It requires only that the field include the pattern long enough for the cortex to register the structure, which takes about three seconds. The rest is what the brain does at night.
She rides three stops. She gets off at Sankt-Anne. She walks to work along the canal. The weather is bright. The cherry trees at the end of the bridge are doing what cherry trees do in August, which is nothing in particular.
She has a normal day.
She has a normal week.
She buys soup on Tuesday night at a stall in the night market near her apartment. The vendor makes pho. The pho has its particular smell. Star anise. Cinnamon bark. A touch of caramelized ginger. The broth heavy with charred onion. She has eaten this pho perhaps thirty times. She likes it. She likes it tonight. She doesn’t notice it any more or less than usual.
She walks home with the soup. She watches television with her partner. His name is Aleks. They have been together four years. He cooks rice while she eats the pho. He says something funny about a colleague and she laughs and he laughs at her laughing and the cat, whose name is Pavel, walks across the back of the couch and settles on her feet, which is what the cat does most evenings when the world is in order.
She is, at this point, Marked. She does not know. The Westmarket art installation has placed the visual component in her brain. The pho has placed the scent. She is two of three. The third, when it arrives, will not be the announcement she expects. It will be a sound she has heard before, encoded years ago in a context she will not be able to retrieve, and her own brain will complete the pattern from inside.
She sleeps eight hours.
She is fine the next day. She is fine for the next ten days.
On the morning of August 17 she wakes with a feeling she cannot name.
She is not sick. She is not anxious. She is just off. The day has the quality of a day she is observing rather than living, as if she has watched it before in a different version of herself. She goes to work. She doesn’t eat much at lunch. She comes home at six and lies down on the couch and falls asleep there until eight.
She wakes from a dream she does not remember. She is humming.
She does not notice that she is humming for an hour.
Aleks notices first.
“What’s that?” he says from the kitchen.
“What’s what?”
“That tune. What are you humming?”
She stops. She thinks. She doesn’t know.
“I don’t know,” she says. “I think I made it up?”
“It’s catchy.”
He hums it back. He has caught it from her. The cat lifts its head from her feet and stares at her, the way the cat stares when it doesn’t recognize a sound, and then settles back.
“That’s mine?” she says. “Did I just make that up?”
“You’ve been humming it for like an hour.”
She hasn’t been humming it for an hour.
She has been humming it, the case file will later determine, for closer to two. The tune is the audio component. She first heard it eleven years ago, on a bus, in a city she has not been back to since, and her brain has carried the trace of it down all the bridges of her life since, smoothed and shortened and now reactivated by a binding she does not know is happening. The audio is the third thing. The encoding completes during consolidation. Consolidation starts around three.
She goes to bed at eleven.
She kisses Aleks on the forehead. He says I love you without looking up from his book. She says I love you. Pavel follows her to the bedroom and curls at the foot of the bed.
She sleeps.
The cascade fires at three-eighteen.
The autonomic system, which has been waiting all night for the binding to complete, runs the program it was given. Vagal tone collapses. The heart slows. It does not start again.
Aleks finds her at six, when he wakes for work. He says her name. He says it twice. He says it a third time before he understands.
He calls 112. The medics come. The neighbors come. The hallway fills with people who do not know what to do. The medics work on her for the eight minutes they are required to. They declare her at six-twenty-seven. The cause of death is filed initially as cardiac arrhythmia in a thirty-two-year-old woman with no prior cardiac history.
That filing will be revised eleven days later, when the connection is made.
By that point an estimated nineteen thousand people will have completed binding from the August 4 platform exposure, in combination with the various second and third components scattered through the city’s August. The pho broth. The emergency-alert tone broadcast on the twelfth. An ambient hum that ran in three department stores throughout the week. A perfume launched on the ninth. The chorus of a song that climbed the charts that week.
About fourteen thousand of those will die in the six months that follow.
She is the first.
She is unidentified in the case file because Aleks, in his shock, had forgotten where her wallet was, and by the time the medics asked her name had become administratively complicated. The case file goes out with her face redacted in the post-mortem photo, and her name listed as To Be Determined. By the time her name is determined, three days later, the case file has been sealed. The redaction has been baked into the system. She is unidentified forever after, in this file, in this archive.
Aleks will know who she was. Her mother will know who she was. The vendor who made the pho will not know that she was anyone, because the vendor will not know any of this happened, because the connection between the broth and the deaths will not be made publicly for another year.
She was thirty-two. She was the head of the procurement team at a logistics firm in Sankt-Anne. She had a partner she’d been with for four years and a cat named Pavel and a brother in Bucharest she texted every Sunday. She liked pho. She liked sunrise photographs of the Adriatic. She had a tune in her head when she died and she didn’t know where she had learned it.
The bus she had ridden eleven years ago, in the city she had not been back to since, had been the 12, in Brno, on a Wednesday afternoon in April, and the song had been the chorus of an advertisement for a brand of broth that her brain had retained in full and that she would not, even if asked, have been able to summon to mind.