Asya tightened the bolts on the left balance column then stowed her spanner in her leather apron. Turning the power valve, she let steam flow into the automated astrolabe. Pistons shifted and gears crunched as it started calculating stellar alignments. At the top, the great telescope started to rise.
“Stop that!” Genya appeared around the side of the machine’s brass casing, a clutch of punch cards in his hand and a scowl crumpling his handsome features. “I’m still assigning programs.”
“We already did that,” Asya said.
“We can do it better,” Genya replied.
“Put it back how it was.” Asya closed the steam valve. “I need to test the pistons.”
“I’m not your assistant. I will finish the programming and you can test the pistons when I’m done.”
She glared at his back as he left. At least she wouldn’t have to tolerate him much longer. The Tsar had ordered the machine completed and delivered to his observatory the next morning. Imperfect as it might be, it would do, and she would be rid of Genya, with his ridiculous floppy hair and those madly shining eyes.
She adjusted spindles and checked counterweights while she waited for him to finish. What was taking so long?
“Are you not finished yet?” she called out.
“The cards are set, but I’m not sure it’s right,” he said, appearing at her elbow. “We might have to reprogram after testing.”
“Reprogram?” She turned the valve and the pistons again stirred into life. “We can’t waste the whole night on your punch cards. There are other mechanisms to calibrate.”
“The programing is the most important. Without it, this is just a telescope that turns.”
“And without the lifts and balances it’s just a telescope. So stop wasting time and help me with the rest.”
“You’re not my supervisor.” He leaned in close to wave a finger in her face. He smelled of axle grease, the comforting scent of machines. “We both answer to the Tsar.”
“And we’ll both lose our heads if this isn’t finished.”
Some instinct held Asya in place. She forced herself to turn away from him, turning dials and tightening screws, examining the motion of the pistons for any sign of misalignment.
“I’m sorry,” Genya said quietly.
She blinked in surprise. Above her head, the main disk of the astrolabe turned, rotating the telescope to look at the best view it had calculated. Figures danced down the display.
“It’s just…” he began. “It’s just that your work is perfect, while mine has flaws to be adjusted.”
“You think my work is perfect?” she asked, amazed. He had been a thorn in her side for weeks. This was utterly unexpected.
“Of course,” he said. “I’m sorry if living up to that has made me irritable.”
A grinding sound made them both jump. Asya’s spanner was in her hand before she even thought about it. They rushed around the machine to find the source of the noise.
High on the left side, a brass plate was trembling. Gripping tight to any protrusion she could find, Asya scrambled up the casing. Precariously balanced on a bar engraved with lunar cycles, she popped the plate open.
Inside, gears were grinding against each other. She could see the tension rippling out through the machine, gears straining, steam blasting from pistons as they tried to move the immovable. The whole astrolabe shook beneath her.
“I told you we needed to test the rest,” she shouted angrily as she looked for the obstruction.
“No-one stopped you,” Genya shouted.
“No-one helped,” she yelled back.
There it was. A spindle had slipped loose, the gear it carried tangling with others. She pushed it in and for a moment the shaking stopped, but then the gear slipped out again. She went to tighten it in place, but her spanner was too large.
“Here.” Genya held a whole tool kit above his head. He strained beneath the weight, teeth gritted with exertion.
Asya snatched out a smaller spanner. She pushed back the spindle, tightened the nut holding it in place, and breathed a deep sigh as the shaking stopped and the telescope resumed its slow, steady turn.
With a thud, she leapt down onto the workshop floor and turned, ready to give Genya another earful about testing. Instead she paused, taken by the expression of sublime wonder on his face. Watching the motion of their perfectly tuned machine, she found her own anger ebbing away.
The telescope turned. As if sensing its gaze, the clouds parted and the light of a full moon shone down on them.
The moon the telescope had turned to view, entirely of its own volition.
“You did it,” Genya said.
“We did it,” Asya replied.
She put the spanner in her apron and let her hand hang loose. Her fingers brushed against Genya’s. Seized by the joy of the moment, she wrapped her hand around his. Her brain had just long enough to register fear at his possible reaction. Then his fingers looped through hers and he squeezed her hand.
“So it’s over,” he said.
“Yes.” Asya found herself unexpectedly sad. “I’m heading to the Shah’s court tomorrow to help build a chess machine.”
“Oh.” Genya sounded crestfallen. Then he looked at her, a timid smile on his face. “Do you need an assistant?”
* * *