Idaan smiled and took a pose of thanks appropriate for a pupil to her master, and then was gone. Hiami swallowed until she was sure the fear was under control again, picked up her knotwork and called for the slave to return.
THE SUN WAS GONE, THE MOON A SLIVER NO WIDER THAN A NAIL CLIPPING. Only the stars answered the miners' lanterns as Biitrah rose from the earth into darkness. His robes were wet and clung to his legs, the gray and violet turned to a uniform black. The night air was bitingly cold. The mine dogs yipped anxiously and paced in their kennels, their breath pluming like his own. The chief engineer of House Daikani's mines took a pose of profound thanks, and Biitrah replied graciously, though his fingers were numb and awkward as sausages.
"If it does that again, call for me," he said.
"Yes, most high," the engineer said. "As you command."
Biitrah's guard walked him to the chair, and his bearers lifted him. It was only now, with the work behind him and the puzzles all solved, that he felt the exhaustion. The thought of being carried back to the palaces in the cold and mud of springtime was only slightly less odious than the option of walking under his own power. He gestured to the chief armsman of his guard.
"We'll stay in the low town tonight. The usual wayhouse."
The armsman took a pose of acknowledgment and strode forward, leading his men and his bearers and himself into the unlit streets. Biitrah pulled his arms inside his robes and hugged hare flesh to flesh. The first shivers were beginning. He half regretted now that he hadn't disrobed before wading down to the lowest levels of the mine.
Ore was rich down in the plain-enough silver to keep Machi's coffers full even had there been no other mines here and in the mountains to the north and west-but the vein led down deeper than a well. In its first generation, when Machi had been the most distant corner of the Empire, the poet sent there had controlled the andat Raising-Water, and the stories said that the mines had flowed up like fountains under that power. It wasn't until after the great war that the poet Manat Doru had first captured Stone-Made-Soft and Machi had come into its own as the center for the most productive mines in the world and the home of the metal trades-ironmongers, silversmiths, Westland alchemists, needlemakers. But Raising-Water had been lost, and no one had yet discovered how to recapture it. And so, the pumps.
He again turned his mind back on the trouble. The treadmill pumps were of his own design. Four men working together could raise their own weight in water sixty feet in the time the moon-always a more reliable measure than the seasonally fickle northern sun-traveled the width of a man's finger. But the design wasn't perfect yet. It was clear from his day's work that the pump, which finally failed the night before, had been working at less than its peak for weeks. That was why the water level had been higher than one night's failure could account for. There were several possible solutions to that.
Biitrah forgot the cold, forgot his weariness, forgot indeed where he was and was being borne. His mind fell into the problem, and he was lost in it. The wayhouse, when it appeared as if by magic before them, was a welcome sight: thick stone walls with one red lacquered door at the ground level, a wide wooden snow door on the second story, and smoke rising from all its chimneys. Even from the street, he could smell seasoned meat and spiced wine. The keeper stood on the front steps with a pose of welcome so formal it bent the old, moon-faced man nearly double. Biitrah's bearers lowered his chair. At the last moment, Biitrah remembered to shove his arms back into their sleeves so that he could take a pose accepting the wayhouse keeper's welcome.
"I had not expected you, most high," the man said. "We would have prepared something more appropriate. The best that I have-"
"Will do," Biitrah said. "Certainly the best you have will do."
The keeper took a pose of thanks, standing aside to let them through the doorway as he did. Biitrah paused at the threshold, taking a formal pose of thanks. The old man seemed surprised. His round face and slack skin made Biitrah think of a