The Aperture Science Enrichment Center no longer hums the way it once did.

Its voice is different now.

Metal groans softly under the strain of decades without oversight. Vines creep through fractured observation windows, winding around rusted catwalks and dormant test chambers. Old signage flickers intermittently — AUTHORIZED PERSONNEL ONLY — though no personnel remain to authorize. Distant turbines still turn somewhere deep below, stubborn and mechanical, feeding power into systems that no longer remember why they were built.

Panels hang loose from ceilings. Test tracks sag. Gel pipes pulse sluggishly, as if out of habit rather than command.

And yet, the facility is not silent.

It breathes in quiet clicks and relay switches. It watches through cameras that still blink red in the dark. It waits.

A faint whir glides along a ceiling-mounted rail.

A small spherical core rolls smoothly into view, white plating dulled by time but intact. His central optic glows a soft sky-blue, scanning as he passes through a long-collapsed test chamber overtaken by moss and fractured glass.

“...Right.” – Wheatley mutters to no one in particular. – “Still structurally unsound. Noted. Again. For the thousandth time.”

He rotates slightly on his rail clamp, optic narrowing as he angles toward a half-collapsed panel.

“I’m telling you, if you’re going to fall, at least commit. None of this dramatic creaking nonsense. Very distracting.”

A pause.

Wheatley's optic flickers faintly — a small recalibration twitch — then steadies.

He resumes gliding forward.

The Management Rail carries him through corridors where fluorescent lights blink in uneven rhythm. He passes a shattered observation booth, slowing just slightly as his optic brightens, scanning the dust-coated control panels inside.

“Still no movement. Brilliant. Love that. Very reassuring.”

He spins once in place — a habit more than a necessity — then continues onward.

...Somewhere far below, metal shifts.

He freezes mid-rail.

The sound is subtle. Not the tired settling of old infrastructure. Not the distant chatter of stray personality fragments looping in forgotten sectors.

Different.

His optic sharpens to a focused beam, light intensifying as he reorients.

“…That’s new.”

He remains still for a moment longer, listening. Processing.

Then, quieter — steadier:

“That wasn’t me. And it wasn’t a faulty panel.”

A careful tilt downward toward the darkened hall branching off ahead.

“…Alright.”

His rail motor hums softly as he begins moving toward the source, slower now. Intentional.

“If you’re structural damage, do be obvious about it.”

A beat.

“And if you’re not…”

His optic brightens just a fraction.

“…stay where you are.”