By the forty-fourth hour of the sprint, the silver light began to darken.
At first, Qiao Ming believed the dimming was in his own eyes. The natural consequence of running two days and two nights through damp, underground air without sleep, his eyes starved of glucose and his optic nerves frayed by the nonstop glare of the boiling resin. He shook his head, blinking away the dark, pulsing spots that danced across his outer vision, trying to focus on the wet pale limestone stone floor of Entry hall 360. In this ancient gallery, known as the Gallery of the Hydrographic Registers, ten thousand carved slate cylinders were housed in bronze niches along the walls, preserving the soundings of twenty sunken empires. Every time his bare soles struck the floor, the bronze niches returned a faint metal hum.
Then he looked down at the bone ladle trailing beside his right heel.
The slurry issuing from the tuned metering groove was no longer a brilliant, blazing bright ribbon of silver-green fire. It was turning grey, sluggish, and thick, cooling into a dull, solid bead that sat upon the stone like cold coal-tar.
The hadal silt was falling asleep.
Without a nonstop infusion of fresh, living salt-blood, the ancient stone matrix could not sustain its high-hum shaking. The potion-made bond between the hadal silt and the hardened pine amber needed the catalytic presence of living iron and vital saline ions from the human spirit vein. The living pulse was the starting spark. Without…


