The first movement was a sound like deep breath: gears rousing, a sigh moving through cogs that had been sleeping for decades. Lights flickered in tunnels like distant fireflies. Above, the city’s clocks found their tongues again, hands jerking to new hours as if someone had taught them to count. Down in the tunnel, the tram lights blinked awake. Then the controllers whispered to each other, a mechanical gossip—pressures equalized, valves opened, and slowly, like a tide reclaiming harbor, a tram rolled forward under its own accord.

The man with the gray coat returned the next day. He let himself in with a confidence that smelled of places untouched by alarm. He didn’t ask for the key back. He only watched Mira from the doorway while the tram hummed past in the city below.

The locksmith who never slept was named Mira. Her shop sat at the corner of Lantern and 7th, squeezed between a shuttered tailor and a café that brewed midnight espresso for insomniacs. People brought her broken heirlooms, jammed apartment locks, and the occasional brass padlock from some past life. They said she could open anything; she never argued.