Climbing the Hollow Ribs

The draft inside the chimney conduit did not merely chill; it pressed inward like a slab of mountain ice. Lyra drew her skirts tight, wedging one boot into the rough cleft of the masonry where the inner mortar had rotted away decades ago. Below them, barely ten feet down through the ragged opening, the faint yellow glow of Morvath’s tallow candle wavered against the pantry jamb. The steward had paused there, shifting his bulk from heel to toe, the leather of his boots creaking softly above the hum of the scullery.

Every inch of upward movement carried the hazard of noise. Kaelen climbed just above her, his heavy dark velvet doublet brushing the frosted granite headers with a faint rasp of pile on stone. When he paused to search out a higher handhold, his dark curls brushed the rim of a smoke shelf, dusting his shoulder with old soot. Lyra reached up, her fingers sliding over the damp leather of his waist-cinch to anchor herself. Beneath the fabric of her bodice, the ancient hearth-anchor flared in sharp, pulsing protest against the sub-zero descent of winter air, radiating a fierce heat that warmed the skin over her collarbone and kept her stiff fingers limber enough to grip.

A single drop of condensed runoff fell from an overhanging ledge, striking Lyra’s bare shoulder like a needle. She flinched, biting down on her lip before a gasp could escape. High above in the darkness, where the citadel’s spine narrowed into a maze of ventilation chambers, came the dry, brittle snap of shearing frost.

A heavy shelf of rime broke away from an upper timber brace. It struck a transverse iron grating thirty feet up, shattering into dozens of sharp fragments that rained through the open shaft. A chunk of ancient, frost-hardened pine clattered against the wall-chute, caroming sideways to graze the leather cuff of Kaelen’s gauntlet before plunging past Lyra’s hip. The rotten wood dissolved into gray powder against the stone ledge beneath her boots, sending up a puff of dry debris that settled silently over the draft.

Neither of them moved. Lyra pressed her forehead between Kaelen’s shoulder blades, holding her ribs rigid while the echo of the ice shards died into the vast chimney. From the pantry below came the muffled scrape of Morvath clearing his throat, followed by a slow, ponderous step toward the outer doorway. The steward had heard something, but the citadel’s winter flues were notorious for groaning under the high mountain gales; after a tense, suspended heartbeat, the yellow taper-glow withdrew from the pantry stones, replaced by the deep shadows of the scullery.

Kaelen exhaled slowly, the heat of his skin distinct even through the wool and velvet between them. Reaching upward into the soot-choked gloom, his gloved fingers closed around a heavy rung anchored directly into the wall. Centuries of hearth-smoke had crusted the metal in thick rime and brine, the rough crystals biting through his palm as he threw his weight onto the fitting. The metal groaned with a low, sullen scrape of oxidized scale, but held fast.