A spiral stair of rusticated granite carried Qiao Ming sixty arm-lengths above the floor of Entry hall 005.
Each riser was narrow, worn smooth at the center by the passage of vanished hundreds of years, but rough along the outer edges where small grey crusts of dried sea-lichen adhered to the stone. His bare feet gripped the cold granite with familiar certainty. The muscles in his calves tightened with each climbing step, the weight of the water-skins on his left shoulder counterbalanced by the eight-pound lead line-weight swinging at his right thigh.
As he climbed, the heat dropped three degrees. The moist, heavy smell of the lower water tanks fell away, replaced by the dry, metal aroma of rusted copper, cold cast bronze, and aged whale oil.
At the sixty-second step, the stairs ended upon a suspended cantilever balcony of dark stone.
Before him stretched the clockwork heart of the hall: the Tide-Clock of Nine Eons.
It was a rig of massive scale, suspended from the groin vaults by four linked iron chains whose single links were as thick as a bull’s torso. In the center hung a nested series of five nested star-ring rings of sea-bronze, the outermost ring measuring forty paces across. Each ring was engraved with ancient outward graduations, star-tracks, and the thirty-six deep-water registers of the Drowned Dao.
Connecting the rings was a huge train of toothed bronze gear-wheels, their teeth hand-filed from dense gunmetal that had darkened with age to the shade of wet seaweed. Pale turquoise blooms of green rust crusted the stationary struts. Meanwhile, the contact surfaces of the teeth shone with the dull, greasy golden lustre of friction and whale grease.
The clock did not run on coiled springs or fragile escapements. It was driven by the earth itself.
From the ceiling above hung a balance weight fashioned from a single six-sided block of black dark rock weighing ten thousand pounds. Far below, through an upright shaft bored through the floor, a high-pressure piston connected to the underground surge-chambers. Every time the sea rose or fell in the lower vaults, the air-powered pressure shifted the piston, lifting the great dark rock weight by three inches and advancing the gear catch wheel by a single tooth.
Tock.
The sound arrived once every twelve breaths—a heavy, metal strike that rang through the dark rock balcony and shook in the soles of Qiao Ming’s feet. It wasn’t a hurried click. It was the slow, unbending pulse of an engine built to outlast dynasties and continents.
Qiao Ming stepped off the balcony onto the narrow check narrow high walkway of bronze grating that encircled the main drive ring. Through the perforations of the grating, the floor of the fifth entry hall lay sixty arm-lengths beneath him, a pale mosaic of marble flags crossed by long shadows cast by the high window row windows.
At the northern hub of the gearwork sat the statue of the Master of the Solstitial Colure.
The figure was carved from dark red stone, seated with his legs crossed upon an eight-sided stone base integrated directly into the clock’s supporting framework. The Master’s stone hands were extended forward, palms upward, cradling the main axle of the sky gear-train. His eyes, carved wide and pupilless, were fixed upon the ceiling vaults overhead.
“Good afternoon, master,” Qiao Ming said, resting his hand against the cold stone of the Master’s draped knee.
The Master said nothing, but a faint shudder ran through his red stone mantle as the gear catch pallet completed its cycle. Tock. A puff of dry air, scented with old oil and powdered copper, puffed from the bearing beneath his wrists, stirring the damp hair at Qiao Ming’s temples.
Qiao Ming turned his gaze upward toward the roof.
Here, in the upper reach of the hall, the ceiling was not stone. It was an artificial sky high sky built from overlapping plates of black slate. Embedded in the slate were thousands of star-iron studs that pulsed with a faint, cold blue soft glow. Across these studs ran the sky star-rails: dual tracks of polished meteoritic iron along which the great sky orbs traveled.
Far to the west, the Golden Disk of Sovereign Dawn was currently dropping into the bank of purple cumulus that masked the western spandrels, casting long, amber rays across the clock’s star-ring rings. High to the east, the Cold Pearl of the Crescent Mirror was gliding forward on its magnetic track, its frosted white surface casting a silver sheen across the bronze gears.
Qiao Ming drew his Folded brass star-compass from its pouch.
He opened the outer sighting plate, aligning the twin vanes with the zenith of the Cold Pearl and the fixed reference stud of the Northern Anchor Star. He needed to verify the star-rail declination against the clockwork position of the clock’s fifth ring.
If the clock drifted by even a few fractions of an arc, his tide-tables would fail. In the Endless Hall, a land-mapper who misjudged the median surge by half an hour could find himself trapped on an isolated stone base with sixty feet of freezing salt water churning between himself and the dry upper naves.
He held the brass instrument steady, squinting through the sight holes. The index arm clicked against the fine-scale teeth with a sharp, delicate rasp.
The reading matched the position of the Master’s third star-ring within four minutes of arc. The drift was negligible—the sky rail was tracking true to the clockwork heartbeat of the lower foundations.
Qiao Ming pivoted the star compass downward to read the crushing pressure tube that rose from the central shaft. Inside the glass column, a float of hollow silver bobbed upon a knee pad of dark, heavy salt water, rising steadily against the engraved scale.
The median surge was gathering in the drowned basements.
Four hours and eighteen minutes.
That was the span leftover before the second tier of tides returned to wash the central walkway. The water would enter through the twelve lower water gates of Entry hall 006. He rose four arm-lengths above the stone floor, deep enough to submerge the bases of the fluted pillars and drown the lower passages that connected the fifth entry hall to the southern terraces.
“Four hours,” Qiao Ming said to the stone Master. “Enough time to visit the high arches of the Sixth Entry hall and inspect the tern roosts before the water cuts the narrow high walkways.”
He lowered the star compass and reached into his pouch for his oil-horn.
The bearing beneath the Master’s stone hands had developed a faint, dry squeak over the past three days—a minute friction where the bronze journal rested in its granite sleeve. Qiao Ming unplugged the horn and tipped three drops of rendered seal-blubber into the lubrication channel.
The amber oil flowed smoothly into the dark groove. The next movement of the axle drew the grease between the surfaces with a quiet, satisfying sigh.
Tock.
The strike was clearer now, the deep ring rounder, free of the dry scrape that had troubled the Master’s wrists.
Qiao Ming wiped his fingers on the rough canvas of his trousers. He leaned over the bronze railing and looked out across the huge void of the hall.
From this height, the Endless Hall revealed its true, quiet shape. To the north, the grand row of stone pillars stretched until the white pillars blurred into a pale, mist-shrouded row of stone pillars of stone, vanishing into the dim shadows of Entry hall 001. To the south, the stonework opened into wider, higher vaults where the ceiling-clouds drifted like sleeping whales between flying stone props eighty arm-lengths long.
There was no haste in this world. The clock did not measure the fleeting, wild minutes of mortal commerce—the opening of markets, the arrival of courier posts, the panicked deadlines of dying kings. It measured only the slow, majestic breath in and breath out of the Drowned Dao, the steady gathering of the waters. The eternal vigilance of the stone watchers who had surrendered their breath so that the house might endure.
Qiao Ming felt a deep stillness settle into his ribs.
He had no desire to hurry down the stair. He stood upon the bronze narrow high walkway for a dozen beats of the clock. He listened to the harmonious interplay between the distant organ drone of the third entry hall and the heavy, rhythmic strikes of the Nine-Eon gear-train.
“I will leave you to your counting, master,” he said softly, bowing to the red stone figure. “The grease should hold until the moon-tide line-up next week. Guard the stars well.”
The Master remained motionless, but as Qiao Ming stepped toward the spiral stair, a single shaft of silver moonlight from the Cold Pearl pierced the high window row, striking the polished star-ring rings and painting a web of nested golden circles across the stone wall behind the Master’s head.
Qiao Ming smiled, gripped the granite handrail with his bare toes, and began his descent back toward the floor.
Ahead lay Entry hall 006. There, the high friezes met the clouds, and where the silver terns nested in the carved beards of the ancient kings.