The waveform on Nadia’s monitor looked like a low shore: a dull hump of noise, a sharp spike where a door slammed, a rippling comb of someone’s keys. She rolled the wheel back and forth, listening to the hiss like snow falling against a window, the sound she could read as easily as other people read faces. The fluorescent light buzzed above her. In the lab’s glass, her reflection floated pale and double, a woman of twenty-seven with a braid slipping loose and under-eyes bluish from too much coffee and not enough sleep.
“Five seconds,” she murmured, tapping the spacebar. On the police recording, a man coughed. There was a bus braking outside. Somewhere an elevator coin-dropped. This was Tuesday, which meant she would process six more sets of unrelated sounds, send tidy reports, and pretend she didn’t hear the phantom singsong in the hiss, the child’s lullaby she never played for herself.
The courier left the envelope on her desk while she was in the kitchenette rinsing a mug. No sender’s name, just her own written in careful block letters, as if the writer had practiced on a pad. The paper smelled faintly of iodine and old paper, that library smell from years ago. She peeled it open with her thumbnail. Inside, a small cassette in a crackled plastic case. Handwritten on its spine in a darker ink: NADIA.
Her mouth dried. Old plastic held warmth, as if it had been kept close to a body. She walked back to her station, slid the cassette into the deck she kept for legacy files, and pressed play with a forefinger that felt too big.
The first second was a flood of air, a room-sized hush. Then the hiss settled into a bed. Underneath, faint as sleeves brushing, came a melody. No instrument, just a woman’s hum, the rising two notes and the falling three that had braided through Nadia’s childhood like the line between sea and sky. She clenched teeth against the burn behind her eyes.
“Who sent you?” she asked the desk, flat as a stone. Behind the hum, another noise appeared: a foghorn far off, slow and mournful. Gulls. The clink of halyards on metal masts. When the hum stopped, there was a man’s voice whispering a station ID broken by static, two words she had not said in ten years. “Skalniki… radio…” The tape clicked and ran on with hiss.