The wanderer's boots found the threshold and stopped.

The deck opened wider than the corridor had promised. Two walls of crystalline viewports curved outward, following the mountain's contour, and the ceiling lifted high enough to hold its own weather. Terminals clustered in quiet alcoves — a scholar bent over a screen, stylus moving in the slow rhythm of someone with nowhere else to be. Near the western viewport, two figures stood close in conversation, their voices a low murmur that blended with the ventilation's hum. An artist sat cross-legged on a floor cushion, sketchpad balanced on one knee, charcoal moving in short decisive strokes. In the far corner, someone slept in a reclined chair, their blanket tucked under their chin, face turned toward the rift.

The air here carried something green and faintly mineral — alpine moss, maybe, or the scent of the mountain itself finding its way through the filtration. The wanderer breathed it in.

The woman was already there.

She stood at the eastern viewport, her back to the room, her attention given entirely to what lay beyond. Dark hair gathered at her neck. She hadn't moved at the sound of the door.

The wanderer crossed the deck slowly, choosing a spot three meters to her left. A wide bench faced the viewport, its surface worn smooth by years of sitting. They lowered their pack to the floor — the straps had carved familiar grooves into their shoulders — and let the weight settle against the bench leg.

The rift dropped away below. Blue-green light pulsed in the depths, slow as breathing. The scale was wrong. The walls of the canyon should have been visible, the arrays on the lower slopes, but the viewport showed only the drop and the dark and the light that moved through it.

The woman turned her head.

Not all the way. Just enough to register the new presence at the edge of her field. Her eyes found the wanderer's — dark, unguarded, awake behind modern frames. Neither of them looked away first.

She turned back to the view.

The wanderer sat.

Time moved differently on the observation deck. The ventilation hummed beneath everything, a baseline the ear stopped noticing after a while. The scratch of the artist's charcoal. The murmur of the two figures by the western viewport rising and falling like weather. Someone walked past the door without entering, their footsteps fading down the corridor. The sleeper in the corner shifted once, twice, then settled deeper with a long exhale.

The wanderer let the sounds layer over each other. The woman at the eastern viewport hadn't moved — hands at her sides, weight steady, attention given to the depths.

The embedded lights in the ceiling shifted — so gradually the wanderer almost missed it. The warm interior glow cooled by degrees, and the viewport's reflection dimmed. What had been a mirror layered over the rift became a window into it. The pulse below sharpened, its rhythm more visible now.

The wanderer's eyes adjusted. New features emerged in the depths — ridges, perhaps, or the edges of structures too far down to name. The rift wasn't empty. It was full of things that only appeared when the light was right.

The scholar rose from her terminal and crossed to a different alcove, tablet in hand. The artist tore a page from her sketchpad, crumpled it, started fresh. One of the figures by the western viewport laughed quietly — a private sound, not meant to carry, but it did. A kind of grammar, the deck's occupants moving around each other like currents in the same water.

The wanderer's gaze drifted back to the eastern viewport. The woman's hands had found the rail. She leaned forward slightly, following something in the depths, weight shifting to the balls of her feet.

Minutes passed. Ten, maybe fifteen. The two figures by the western viewport left together, their conversation trailing behind them into the corridor. The artist stretched her fingers, rolled her shoulders, returned to her work. The sleeper woke, stretched with elaborate slowness, and settled back into the chair. The light shifted again.

The woman was closer now.

She hadn't moved. Neither had the wanderer. But something in the arrangement had changed — the space between them smaller, as if the room itself had decided they belonged in the same frame. The wanderer could see her more clearly now: the way her glasses sat slightly forward on her nose, the small movements of her breathing.

Her eyes stayed open. Receiving whatever passed in front of them.

The wanderer's shoulders dropped. Their breathing slowed to match the rhythm of the rift below.

The rift pulsed below, slow and patient. The light rippled upward through layers of dark. Far down — impossibly far — something caught the glow and held it for a moment before letting go.

The woman turned.

This time she faced the wanderer fully. Her expression was unhurried. She studied them the way she had studied the rift — with attention, not demand. Then she smiled.

She turned back to the viewport.

The wanderer's throat was dry. They didn't try to speak.

A tone sounded somewhere distant — the quarter-hour warning before the briefing. The sleeper stirred again, this time pulling free of the blanket and rising with a groan. The scholar began saving her work, stylus tapping final marks. The artist closed her sketchpad and tucked the charcoal into a case at her hip.

The woman remained at the viewport.

The wanderer rose slowly. Their pack felt lighter when they lifted it, though the weight hadn't changed. The straps settled into their grooves without complaint.

She glanced over her shoulder as they passed. Her eyes held the question without asking it.

The wanderer paused at the elevator. The doors stood open, waiting. Through the crystalline walls of the shaft, the mountain's interior fell away — a vertical structure of glass tunnels and carved stone, warm light glowing from alcoves carved into the rock, the whole architecture revealed in a way the upper levels had hidden.

Below, the observatory's true scale emerged. Labs descended in tiers. Walkways crossed the central void like threads in a loom. Figures moved along distant corridors, tiny with distance. The elevator waited at the edge of all of it.

The wanderer looked back once.

The woman still stood at the viewport, her attention given to the depths. Her reflection in the glass was watching them.

The elevator doors held.