"Done a thousand times, I'm sure," Joric said, turning the page. "But it must be witnessed. Next: "

Then she went back inside. She picked up Lily. Then Thorn. She placed them in a triangle around Petal on the doorstep. She linked their air-hoses to a tiny, self-contained solar steam-battery.

They went on. Elara set a single piston to lift a cup of tea. Not fast. Not powerful. Just steady . The piston rose one millimeter per second. The tea did not slosh. The cup did not rattle. At the top, the piston held for ten seconds, then descended just as slowly. Achievement unlocked: Move a mass of one kilogram at constant velocity with less than one decibel of audible mechanical noise.

Her workshop smelled of beeswax and brass polish. On her main workbench sat a device the size of a breadbox: twelve copper pistons arranged in a daisy-chain around a central glass cylinder. It had no purpose but to move beautifully. Elara called it "Petal."

Joric wrote in his ledger. But this time, the words did not appear in gold. They appeared in soft, silver-green ink, as if growing from the page:

Petal began its hour-long wave. Lily's tremolo slowed to a gentle, once-per-minute pulse. Thorn breathed its eight-second breath. And the three of them together, in the open air, with the scent of grass and the first evening star, played their silent, patient, beautiful song.