She handed over five dollars. He left. The door clicked shut.

Back in her apartment, she put it in her laptop. The files weren’t MP3s. They were high-resolution audio of songs that didn’t exist: a gospel-tinged version of “No One” with a bridge about forgiveness, a haunting piano elegy called “Echo in Silver,” and a thirteen-minute suite titled “The Girl Who Fell Through.”

Her reflection from the real world reappeared on the glossy black surface of the grand piano, waving frantically. Come back , it mouthed. The door is closing .

“It’s not a file ,” Otis said. “It’s literal. The songs are in the mirror.”