When my son, Leo, was ten months old, his father, Derek, moved into our two-bedroom flat above a derelict bakery. The place had always felt too quiet, but I had managed. Now, with Derek’s heavy footsteps and the smell of his tobacco, the silence had been replaced by a nervous hum. I had my doubts. He had missed Leo’s birth and the first nine months of his life, showing up with a suitcase and a promise to try again. I was tired and lonely, so I let him in.
Our days were a tangle of petty arguments and awkward reconciliations. We were learning to be a family, but it felt like we were both reading from a script written by someone else. I would catch Derek staring at Leo with a wary expression, as if the baby were a puzzle he couldn’t solve. Leo, in turn, would watch his father with huge, unblinking eyes, never laughing or cooing at him the way he did with me. The only time the flat felt truly alive was when Leo was asleep in his crib, breathing softly, and Derek and I would sit in the living room, pretending we were not two strangers sharing a bed.
One night, about three weeks after Derek moved in, I woke up to find his side of the bed empty and cold. I assumed he had gone to the bathroom, so I lay still, listening. The flat was utterly silent, save for the ticking of the radiator. A minute passed, then two. I rose, pulling on my robe, and padded into the hallway. The bathroom door was open, darkness within. The living room was dim, lit only by the orange glow of a streetlamp outside. Derek was not there.
A knot tightened in my stomach. I walked to the kitchen; the empty coffee cup still sat in the sink. I called his name, a whisper at first, then louder. No answer. A strange dread crept up my spine. I went back to the bedroom, half expecting to find him there, but the bed was still empty. My heart began to pound. My first thought was our son. I rushed to Leo’s room, my bare feet cold on the linoleum flooring.
His door was ajar. I pushed it open. The room was dark, but I could see the pale shape of his crib against the far wall. I flicked on the light. The crib was empty. The white, hand-knitted blanket I had made for him was thrown to one side, as if he had been forcibly pulled from it. Panic seized me. I ran through the flat, shouting his name, but there was no sign of him anywhere. The front door was locked and bolted from the inside. The windows were shut.
I called Derek’s phone; it rang from the kitchen table, where he always left it. I called the police, but as I was babbling to the operator, I heard a faint sound—a soft, rhythmic hum, like a lullaby, coming from the direction of Leo’s room. The operator was asking for my address, but I dropped the phone and ran back to the nursery.
The light was still on. The crib was no longer empty. Leo was lying in it, exactly as I had left him, the blanket tucked neatly around him. He was awake, and he was humming—a tune I had never heard before, something eerie and slightly off-key. I scooped him up, sobbing, and held him to my chest. He stopped humming then, and began to cry, as if he had just realized something was wrong.
When Derek came back an hour later, he claimed he had gone out for a walk to clear his head. I showed him Leo’s room, told him what had happened. He looked at the crib, then at me, and said I must have been dreaming. But I didn’t dream it. The police arrived, searched the flat, and found nothing out of place. They left, and Derek and I sat in frozen silence, both of us avoiding the truth.
That night, I didn’t sleep. I watched Leo breathe, and I watched Derek pretend to sleep. In the days that followed, the hum became a presence. I would hear it sometimes in the flat—a soft, distant melody, like a music box that had been wound too tight. Derek heard it too, though he refused to admit it. Leo would go silent whenever it started, his eyes fixed on a corner of the room where the shadows seemed to pool.
One afternoon, I was in the kitchen when I heard the hum coming from the nursery. I crept to the doorway. Derek was inside, bent over the crib. He was humming the tune, his lips moving clumsily, as if he were trying to imitate it. Leo was staring at him with an expression of pure terror. I screamed. Derek spun around, his face pale. ‘I thought I could distract him,’ he said, his voice shaky. ‘He wouldn’t stop crying.’
But Leo was not crying. He was simply frozen, his tiny body rigid with fear. I took him away, and Derek and I had our worst fight yet. I accused him of doing something to Leo that night, of taking him somewhere he wouldn’t say. Derek swore he was innocent, but I saw the fear in his eyes. He was afraid of something too, perhaps of what he had done without remembering, or of what he had witnessed.
That evening, I decided to move Leo’s crib into our bedroom so I could watch him at all times. As I dragged the crib across the hall, I noticed a small, dark stain on the wall behind where the crib had stood. It looked like old blood, but I had never seen it before. I touched it; it was dry. The marks formed a crude symbol, like a spiral with an eye in the center. I had never seen anything like it, and it filled me with a primal kind of disgust.
That night, I put Leo down in our bedroom, and Derek and I lay in bed, both of us staring at the ceiling. The hum started again, this time coming from just beneath our bed. I felt the floor vibrate, and the temperature dropped sharply. Derek lunged for the lamp, but it wouldn’t turn on. In the darkness, I heard Leo begin to whimper. I reached out for him, but my hand met empty air. The crib was gone.
Then I heard the hum grow louder, turning into a dissonant chorus of voices, all singing the same wrong notes. I scrambled to the floor, feeling around, and my hand touched something cold and metallic. It was a key—an old, rusted key that I had never seen. Derek’s shaky voice came from beside me: ‘What is that?’
I clutched the key and felt a surge of panic. The humming stopped, and the room fell into an absolute silence. I heard a soft click, like a door unlocking. I saw a faint gleam from the hallway. I got up, following the sound, and found the door to a closet we never use—a narrow storage space built into the wall. The door was open, and it was pitch black inside.
I reached in, and my hand brushed against something soft and familiar. I pulled it out: it was Leo’s blanket. But it was cold and damp, as if someone had just ripped it from his body. I heard Leo cry out from behind me, and I turned to see him standing in the doorway of our bedroom, his face tear-streaked, pointing at the closet. ‘Bad,’ he said, his first word.
I dropped the blanket and ran to him, scooping him into my arms. Derek appeared, looking terrified. He grabbed the blanket and threw it into the closet, slamming the door shut. He fumbled with the key I had dropped, and for a moment, I thought he was going to lock the closet, but instead, he pocketed the key and pulled me and Leo out of the flat, down the stairs, and into the cold night air.
We never went back for our things. The police later said the flat was intact, but the closet contained an old, rusted latch that must have been locked from the outside for decades. They removed the closet door and sealed the wall behind it. We moved in with my mother, and I never spoke of the hum again.
Derek and I broke up a month later. He said he couldn’t live with the memory of that key, of that blanket. I still have dreams where I am in that flat, and the closet door is open, and I can hear a child humming, but it is not my son. Sometimes, I catch Leo staring at a corner of the room, and he will whisper to me, ‘It’s still looking for me.’ And I know that whatever the entity was, it was not kind, and it was not confused. It was waiting, and it used Derek’s presence—his anger, his guilt, his unresolved love—as a key to slip through the cracks of our fragile peace. I don’t know if it was the same thing that helped me when I was alone, but I pray to any god that will listen that I never have to find out.