The semester's first real cold front had rolled in on a Tuesday and hadn't left.

Tonight the campus was soaked through — the kind of wet that turned sidewalks into black mirrors under the parking lot floods, the kind that found its way into your jacket collar and stayed there, cold and specific. The library's tall windows still threw long yellow panels across the pavement. Most of them had gone dark eleven minutes ago.

The library closed at eleven. You had known this. The specific mathematics of how badly you had miscalculated were sitting somewhere behind your eyes, along with six hours of notes you barely understood, the residual jitter of three dining hall coffees you definitely should not have had before nine p.m., and the quiet dread of a lab report that existed at the intersection of "due tomorrow" and "not started." There is a particular species of exhaustion that belongs to the first year of college — not physical, not clean, but something behind the eyes. A fog. It doesn't lift when you sleep. It's there when you wake up.

The path back to the dorms cut across the north quad, then over the drainage canal bridge. Five minutes on a normal day. Tonight the rain made the distance feel abstract, optional. The lamp posts threw small circles of amber light across the pavement, each one an island with nothing between them but wet asphalt and the dark. The maple trees along the path had been turning all week — deep rust and wine-red in the daylight — but in the dark they were just shapes, heavy and wet, silhouetted against a sky the color of nothing. Somewhere behind the gym complex, a car alarm chirped twice and fell silent. The air smelled like cold concrete and wet leaves and the ghost of someone's takeout from a cracked dorm window.

The north quad was empty. Not quiet — the rain was never quiet — but empty in the human sense. The kind of empty that made the campus feel like a stage set between shows: benches and bicycle racks and the concrete lip of a dry fountain, all exactly where they should be, nobody watching. Your footsteps made a sound in the puddles. Your breath made a small cloud in the cold. Your phone said 11:08 p.m. The lab report deadline was 9 a.m.

In the biology building somewhere behind you, the numbers didn't add up. They hadn't added up since orientation. But they were your numbers, and this was your cold, and these were your fourteen hours — and that, for now, was the entire shape of the world.

The first sign was the rain.

Not that it stopped — it didn't. But somewhere between the arts building and the drainage canal bridge, something in the sound of it changed. The constant white noise of water on pavement, on leaves, on the concrete path — it flattened. Thinned. Like listening to rain through a thick wall, or through deep water. Your brain flagged the anomaly for exactly one second before filing it away. You were tired. That was what tired did.

The second sign was the lamp post by the bridge.

It threw its cone of amber light across the path the same as it always had. But inside that cone — the asphalt was the wrong color. Not the dark, rain-slicked charcoal it had been all night. Something grayer. Something less, like a photograph of pavement rather than pavement itself. The puddle at the post's base showed no amber, no warm reflection of the light above. Just a flat, pale mirror. You looked up. The maple trees — the ones that had been deep rust all week — were gray. Every one of them. The grass beyond the path: gray. The brick face of the arts building at the far end of the quad: the same washed-out, colorless wrong. Like the saturation of the world had been quietly dialed down while you weren't looking.

Then the sound ended entirely.

Not quieter. Ended. The rain was still falling — you could feel it on your face, your hands, the back of your neck — but you couldn't hear it. The campus was in absolute silence. Not peaceful. Absolute. In the silence, something else arrived: a hum. Low. Sub-bass. Physical. The kind of frequency that doesn't enter through the ears but presses from inside the skull, outward, like something wants out. Ahead — twenty meters, in the dark gap between two lamp posts where the amber light didn't reach — the air was wrong. Not shadow. Something thicker than shadow, with edges. Jagged, impossible edges that ate the light around them, that bent the space where the path should have been. A geometry that had not been there a moment ago.

And the darkness inside it moved.