The Voice in the Nursery

When Elara first installed the sleep-monitoring app, she did it for the same reason many exhausted parents did: to reassure herself that her son, Mateo, was breathing normally through the night. The app quietly recorded while they slept, and in the mornings she would check the little graphs, the timestamps, the harmless peaks and dips that made her feel less alone in the dark.

Then one night she heard something she was never meant to hear.

She had played back a recording out of curiosity, expecting the usual sounds of a restless child, a creaking house, perhaps her own occasional murmur. Instead, beneath the soft rustle of blankets and Mateo’s sleepy whimpering, there was another voice.

A second voice.

Low. Close. Unmistakably present.

Elara froze at her kitchen table, one hand gripping her phone so hard her knuckles went white. The sound was faint, almost hidden beneath the static, but once heard it could not be unheard. It did not belong to her. She knew the shape of her own voice, the rough edge in it when she was tired, the little catch when she said Mateo’s name. This was different. Stranger. Wrong.

She listened again and again, each time hoping to convince herself she had imagined it. Maybe the app had caught a neighbor through the wall. Maybe it was some distorted echo of her own voice. Maybe sleep deprivation had finally started to make monsters out of ordinary sounds.

But the second voice remained.

It haunted her for days. She checked locks. She checked windows. She checked Mateo’s room twice, then three times, every night. Nothing ever seemed out of place, and that made it worse. Fear had nowhere to land when there was no broken window, no open door, no footprints in the hall.

At last, she mentioned the recording to a few people she trusted. One of them, a sound technician named Soren, offered to listen and give an honest opinion. He heard the clip, then listened again, frowning in concentration.

When he finished, he told her gently that the second voice did not sound like an echo, and did not sound like hers.

That answer should have frightened her more. Instead, it settled over her like a cold weight.

She kept using the app after that, but only for what it was meant to do. She stopped playing the recordings back. She no longer wanted to know what else might be sleeping beside her in the dark.

The mystery remained unsolved, tucked away in the silent archive of her phone. Elara never found out who, or what, had spoken into the nursery that night. She only knew that some sounds, once heard, never truly leave a person alone.