The Sealed Gates

The fraying secondary stay-line whipped against the underside of the seventh rib, scattering grease and yellow slime into the fog. Ebele-oma hooked her left boot through the sway-stirrup and jammed her rigging knife into the fractured socket above her head. She needed two handholds before the primary anchor pin tore loose, or the cradle would pitch her into the white abyss where the soldier had vanished.

Forty feet below, the pulsing lattice of bone-leeches contracted against the petrified marrow. The stench of acid and scorched mail drifted upward, catching in her throat like lime dust.

She felt the iron anchor pin shudder in its calcium sleeve. The sudden loss of the spearman's weight had not steadied the rigging; the slack had rebounded into an uneven oscillation that hammered the split bone.

With her thumb clamped over the horn hilt of her knife, Ebele-oma measured the tremor with her bare palm against the rib. She waited through three vibrating pulses. On the fourth, precisely at the crest of the upward rebound when the tension dipped, she kicked free of the stirrup, threw her torso across the lip of the outer maintenance ledge, wrenched the rigging knife free from the socket, and hauled herself over the oak timber coaming.

The anchor pin snapped behind her with the dry crack of dry pine. The hemp cradle plunged into the white fog, spinning once before disappearing into the canyon silence.

Ebele-oma lay flat against the rough decking. Cold river wind whipped across the road span, carrying the sour musk of twenty-nine sweating spearmen, wet draft oxen, and iron cart axles.

"Stand to!" a sergeant barked twenty paces up the carriage way. "Form ranks on the midline! Keep the draft-beasts between the shafts!"

Ebele-oma scrambled to her feet. Her palms were stained with calcified grit, and the bone-fluid on her knife blade hissed softly where it touched the river-damp wood of the coaming. She did not wipe it off.

Knight-Constable Ifeanyichukwu-eke stood beside the lead supply cart. His mail coat was dusted with road grime, but his scarlet mantle remained pinned squarely across his chest by an iron brooch. He held his drawn arming sword angled toward the northern mist.

"You severed the tackle," Ifeanyichukwu-eke said without turning his head. His voice was flat, pitched beneath the rumble of the wind. "My man went over."

"Your man stepped on an unpinned outrigger after I marked it with red chalk," Ebele-oma said, stepping into his path. She held up the blackened blade of her rigging knife. "And he did not fall to the river mud. Look at the grease on this edge. The marrow under this rib is awake. There are things clustered sixty feet down that eat iron before a body clears the second updraft."

Ifeanyichukwu-eke stared at the blade. The caustic marrow was still eating the tempered steel, frothing in tiny grey blisters along the fuller. His jaw tightened as he watched the metal pit and discolor before his eyes.

"Hold the train!" the constable shouted, raising his gauntleted hand to the column behind him. "Hold axles at the seventh seam!"

The teamsters hauled back on the leather traces. The lead wagon shuddered to a dead stop five paces from the fracture.

"If you roll another axle across this seam, the rib shears," Ebele-oma said. "Order the train cleared. We must back the weight off to the southern buttress before the load settles into the lead wedges."

"We cannot back the supply carts onto the south approach without room to turn," Ifeanyichukwu-eke said, gesturing toward the fog-draped road ahead. "The Northern Reach lies less than eighty paces beyond the eighth vertebral crown. We hold position here while I inspect the northern gatehouse."

Before he could take two paces forward, a sharp iron clatter rang out from the northern fog.

It was not the sound of a horn or a challenge. It was the counterweighted drop of twin iron portcullises dropping into cut stone.

Through the shifting vapor, the silhouette of the Northern Gatehouse loomed at the bridge's northern terminus. Built directly into the sheer cliff where the beast's neck met the mainland rock, the granite watchtower rose four stories above the canyon. Its heavy oak-and-iron draw-gate had descended flush against the stone threshold. Behind the grates, iron drop-bars fell into their sockets with rhythmic, heavy thuds.

The southern spearmen halted in ragged disorder. Oxen groaned, shifting their hooves against the wet timber deck.

"Gatekeepers of the North!" Ifeanyichukwu-eke shouted, striding forward until his boots struck the white chalk line marking the provincial boundary. "Raise the portcullis! We carry the seal of Duke Obidike-adu and light convoy papers! Clear the road!"

A small rectangular viewing slit slid back in the thick timber gate. A face appeared behind iron bars, framed by the wool hood of the Northern Masonry Guild's civil bailiffs.

"The crossing is closed," a thin voice carried across the forty paces of open deck.

"I hold the transit manifest," Ifeanyichukwu-eke called back, his left hand dropping to his scabbard. "The southern toll was rendered in full to Clerk Nwoye. The Great Span is an imperial road by treaty of the Three Crowns."

"The treaty applies to sound bone," the voice responded from behind the iron bars. "Toll-Auditor Chidubem-eke has recorded an unauthorized structural release from the lower seventh arch. Our instruments on the northern abutment logged a three-inch drop in the suspension tension."

"A cart horse stumbled," the constable said coldly. "Nothing more."

"A soldier fell," the northern clerk countered without emotion. "And our deck-watch smelled marrow-steam two minutes later. By order of the Northern Council of Shire-Reeves, the bridge is placed under sanitary quarantine. Unregistered organic seepage carries an impound surcharge of forty silver rings per axle."

"Open the gate, clerk, or I will put iron picks to your hinges!"

"Touch the ironwork and the rampart ballistas loose their bolts," the voice replied. "Remain thirty paces back from the threshold until the Shire-Reeve inspects the lower joints tomorrow at noon."

The viewing slit slammed shut. A secondary iron bolt dropped into place from the interior, deadening the sound.

A hollow quiet settled over the span, broken only by the whistling wind and the nervous stamping of the oxen.

Ifeanyichukwu-eke turned slowly toward his men. The vanguard had bunched together on the carriage way, trapped in the narrow space between the sealed northern gate and the rotted bone behind them.

"Turn the carts," the constable ordered quietly. "We form a defensive perimeter at the southern arch."

"You cannot roll them back," Ebele-oma said.

Ifeanyichukwu-eke faced her, his knuckles white against his sword hilt. "We cannot stay on this ledge, woman. If the northern cowards will not open, we return to the south."

"The seventh rib will not take a reversal of the draught load," Ebele-oma said, pointing her tapping-iron toward the timber-plated spine beneath their feet. "When you pulled forward, the weight pressed into the joint. If you pivot those three supply wagons, the tongue-chains will drag across the crown and twist the seam sideways. The lead wedge I drove will pop like a cherry stone."

"Then what do you propose?" he asked, anger tightening the skin around his eyes. "We stand here until winter?"

"Unhitch the oxen," she said. "Tie them in single file along the centerline, where the dorsal ridge is solid calcium. Lash the wagon wheels to the outer parapet timbers so they cannot roll. We distribute the dead weight, or we all drop into the fog before sunset."

For three heartbeats, the knight-constable looked at the blackened tip of her knife, then at the trembling road deck. He turned toward his sergeant.

"Unhitch the beasts," Ifeanyichukwu-eke ordered. "Do as the mason says."

The spearmen moved with frantic haste, unbuckling harness leathers and easing the great grey oxen out from between the shafts. Ebele-oma knelt by the northern wheel of the lead cart, inspecting the heavy iron mooring stakes driven into the bridge deck to secure the road barriers.

She reached down to test the stability of the nearest stake.

The three-foot rod of forged iron did not budge under her hand, but the bone around its base was wet. A ring of pale, viscous grease bubbled softly around the collar where the metal entered the petrified spine.

Ebele-oma watched in stillness as the grease thickened.

Then, without a hammer blow or a shifting wheel, the iron stake groaned. With a slow, wet suction, the rod rose half an inch out of the solid bone, pushed upward by the grey pressure of the marrow beneath. The beast was not merely rotting. It was spitting out the nails.