The orb sat in the cellar at chest height, exactly as Silas had described it sixty-three years ago: hovering, pulsing, green as moss on the north side of the oak that stood in the front yard and was now dead, rotted from the inside by something that had nothing to do with weather.

I had returned to Beauregard Parish because there was nobody else to return. The last Beauregard before me—my cousin Edmond—had died in New Orleans in 1948, drunk on absinthe and regret, and the parish had passed to me by a chain of inheritance so convoluted that the lawyer who explained it to me required a diagram and a nap afterward.

The house was a quarter habitable. The roof leaked in seventeen places. The cotton fields had not produced a usable boll since Reconstruction. But the cellar was intact, and the glow was still there, and I intended to find out what it was before the house collapsed around me or the bank foreclosed or the humidity finished what rot had started.

I hired Dr. Walter Price from the university in Jackson. He was young—late thirties, maybe—and his reputation was in theoretical physics, which in the vocabulary of Mississippi means he thinks about things that cannot be proved and gets paid by the state to do it. I told him exactly what to expect: a green light in a cellar that had no electrical connection, hovering at chest height, present every night for sixty-three years, and untouched by anything I could describe except to say that it made the air feel wet even when the humidity was forty percent.

"You sound like you're describing a ghost," Walter said, folding his notes with neat, precise hands.

"I'm describing a phenomenon. Ghosts don't have phenomena. Phenomena have explanations."

"Even if you can't find one?"

"Especially then. The absence of an explanation is itself an explanation—it means we haven't looked hard enough."

Walter arrived on a Tuesday in late August. The Delta was hot enough to make the air shimmer, except where the glow was—there, the air was cool, and slightly luminous, as though the glow were not just emitting light but replacing the ambient temperature with something else, something that belonged to the glow and not to the Mississippi summer.

He set up his instruments on a table that Silas had cleared for him: a Geiger counter (dead silent), a spectrometer (giving readings that Walter had to check three times because he thought they were broken), and a simple compass (the needle spinning lazily, as though the glow were a magnet and didn't know it).

"Start with the spectrometer," I said.

Walter powered it on and held the probe at arm's length, pointing at the orb. The readout climbed: 490 nanometres. Green light. But the spectrum was wrong—not the continuous rainbow of sunlight or the discrete lines of a gas discharge, but something in between, a hybrid spectrum that contained features of both continuous and discrete emission, as though the glow were made of matter that was partially a solid and partially a gas and partially something for which there was no name in any physics textbook.

"Fascinating," Walter said. It was the word scientists use when they mean something much more complicated.

Over the next four days, Walter ran thirty-seven tests. The glow did not heat its surroundings. It did not consume energy. It did not decay. It simply pulsed—slowly, rhythmically, once every four seconds—like a heart that had been removed from a body and kept beating anyway.

"What is it?" I asked on the fourth evening, when Walter had stopped pretending he was not sleeping on the couch in my guest room and had begun waking at night with the look on his face of a man who has been dreaming in colour.

"It's matter," he said. "But not matter as we understand it. The atoms in the glow—and I use the word advisedly, because 'sphere' or 'orb' would be more accurate—are in a state of superposition. Each atom occupies multiple positions simultaneously. Not quantum superposition, not at the scale we're talking about. Macroscopic superposition. The atoms are here and there at the same time, and the space between 'here' and 'there' is filled with light because the atoms are emitting photons as they oscillate between positions."

"In English, Doctor."

Walter looked at me with an expression that was half admiration and half terror. "It's a ball of atoms that exist in two places at once. And the space between those two places is glowing green."

"Why?"

"Because that's what happens when you stretch matter beyond its natural state. The energy required to keep the atoms in superposition is released as light. The glow is the sound of matter being torn in half—and translated into a frequency we can see."

On the fifth day, the glow touched the table leg.

Walter was adjusting the spectrometer when the probe's cord slipped and dangled over the edge of the table. The end of the cord—a rubber-insulated wire—broke free and fell. It did not fall to the floor. It stopped at the edge of the table and hung there, half-transparent, and Walter stared at it and stared some more and said, "Don't move," in a voice so quiet I had to lean forward to hear it.

The transparency spread from the wire into the table leg. The oak was solid, solid, solid—and then, at the point where the wire touched it, it became translucent, and the translucence spread outward in a slow ripple, like water after a stone is thrown in, except the water was wood and the ripple was becoming ghost.

Walter severed the contact with a knife—cut the cord clean, threw it aside, backed away—and the transparency stopped spreading. But the section of table leg that had been touched was now permanently, irrevocably half-gone. I could see the stone floor through it. I could put my finger into it, and my finger would pass through the wood as though it were air, except my finger did not hit anything because the wood was not entirely there to hit.

"How do we fix it?" I said.

Walter was looking at the glow with an expression I had not expected from a man of science: awe. Not fear. Awe.

"You don't fix it," he said. "You document it. This is—this is the most significant discovery in the history of physics. Einstein is writing relativity. Bohr is building the atom. And here, in a cellar in Mississippi, we have matter that exists in two places at once."

"Can it be contained?"

"Yes."

"Can it be reversed?"

Walter looked at the half-transparent table leg. He looked at the glow. He looked at me.

"I don't know," he said. And for the first time, the scientist's voice sounded like a man's voice—uncertain, afraid, and trying not to show it.

On the seventh day, the glow touched the doorframe.

I was in the cellar, alone, when it happened. Walter had gone to Jackson to file a report—he wouldn't say with whom—and I had come down to check on the orb because something told me I should. The house was silent except for the cicadas, and the glow pulsed slowly, four seconds between beats, and I stood in front of it and felt the cool air on my face and thought about my grandmother, who had taught me to identify plants by their leaves, and about my father, who had sold the bottomland to pay gambling debts and never looked me in the eye again, and about all the Beauregards who had stood in this cellar and watched this glow and died without understanding it, and I thought: I will be another one of them.

The glow expanded. Not dramatically—not like a flame catching dry wood. It expanded the way a shadow expands at sunset: slowly, inevitably, without malice. It touched the stone wall behind it. The stone did not glow. It simply became translucent, and I could see through it to the earth beyond, to the roots of the oak, to the worms, to the dark, patient world that stone had been hiding from me.

I should have run. I should have gone upstairs, locked the door, called Walter, called anybody. Instead, I stepped forward.

The glow touched my hand.

It was cold. Not the cold of ice—the cold of absence. The cold of a room where nobody has lived for a long time. My hand became translucent. I could see the cellar wall through it, and the glow itself refracted through my fingers like light through a prism, and for one moment I saw—

Not with my eyes. With something else. Something behind my eyes. I saw the atoms of my hand, separated, duplicated, existing in my hand and in the glow and in the space between, and I understood, in a flash of understanding that was more pain than knowledge, that the glow was not a thing. It was a place. It was a place where matter went when it stopped deciding what it wanted to be.

I pulled back. The glow contracted. It did not want me. It was simply doing what it had always done: existing in two places at once, glowing green, waiting for the next thing to touch.

Walter returned the next morning. He saw the wall. He saw my hand. He said nothing for a long time. Then he said, "We have to seal the cellar."

"If we seal it, it will grow," I said.

"I know."

"If it grows, it will consume the house."

"I know."

"Then why seal it?"

"Because sealing it buys time. And time is the only thing we have that we can spend."

We sealed the cellar with concrete and steel and a padlock that Silas's grandson turned with a key he immediately dropped into a crack in the floor and did not retrieve. I told Walter I would manage the parish alone. He asked if he could return. I said yes, but he would have to come through the front door, not the cellar, because I was not ready to show him what I had seen.

He came back three times over the next year. Each time, the glow had grown. Each time, more of the cellar was translucent. Each time, Walter's notes grew longer and his handwriting grew more frantic, as though he were trying to write faster than his understanding was evaporating.

On his fourth visit, he brought a sample container—thick glass, sealed with wax—and asked permission to remove a fragment of the glow-affected stone.

"No," I said.

"Dr. Beauregard, this could—"

"What could it do, Doctor? Prove you're clever? Get you a position at Johns Hopkins? Publish a paper that will be cited and then forgotten while the glow keeps growing in my cellar?"

He had no answer.

I locked the cellar door myself. I threw away the key. I told Walter he was not to return. I told the parish that the glow was a mold problem and the translucent walls were efflorescence and everybody was to mind their own business.

They minded it for six months. Then the house began to collapse—not physically, not all at once, but the way a house collapses when the people who sustain it decide to stop. The roof leaked in twenty-four places. The cotton fields were taken over by wiregrass. The bank sent a man with papers, and I signed them.

The glow is still in the cellar. I have been told by neighbours that on certain nights, when the moon is low and the cicadas are quiet, the Beauregard house glows green from the inside—a faint, pulsing green, visible for blocks, like a lantern that was lit sixty-three years ago and has not been extinguished.

I live in New Orleans now. I do not go back. But sometimes, when I wake at night and the humidity is high and the cicadas are loud, I can see it—through the wall of my bedroom, through the fog of my sleep—that green pulse, steady as a heartbeat, patient as stone, waiting for the next Beauregard to come home and stand in a cellar and touch something she was not supposed to touch and see, for one moment, the world as it really is: existing and not existing, here and everywhere else, glowing green in the dark, exactly as it has always glowed and exactly as it will glow after I am gone.

--- [OTMES-v2 Objective Tensor Code] Code: OTMES-v2-C5F1A9-073-M6-090-8R65I-V0C0 E_total: 7.25 Dominant_Mode: 6 (Horror) Dominant_Angle: 90.0 deg Rank: 8 Dominance_Ratio: 0.65 Irreversibility: 1.0 Innocence_Index: 0.75 M_Vector: [8.5, 0.5, 5.0, 6.5, 3.0, 4.0, 6.5, 7.0, 3.0, 4.0] N_Vector: [0.55, 0.45] K_Vector: [0.70, 0.30] Style: Southern Gothic / Poetic Terror TI_Equivalent: 72.5 (T2 Disillusion) Variants: V-04 Beauregard Glow