The Blue Light Under the Stairs

I’m thirteen, and my name is Milo. I live in a converted lighthouse with my mother, who is a marine biologist. It’s not as cool as it sounds; the light is broken, and the stairs are these narrow, winding stone steps that go down to a cold, damp lab where she keeps her specimens. I’ve always been okay with the dark, but lately, the house has felt… wrong.

The first thing happened about three weeks ago. I was heading down to grab a soda from the small fridge in the lab. I flicked the switch at the top, but the bulb at the bottom buzzed and flickered, throwing crazy shadows on the wet walls. I was halfway down, my hand on the slick iron railing, when I heard my mother’s laugh. It came from below, from the lab, but it was off. Deeper, almost guttural, like something trying to mimic her. I froze, my heart hammering. I called out, ‘Mom?’ but there was no answer. The laugh came again, closer this time, like it was right under my feet. I turned and scrambled up, not stopping until I burst into the kitchen. Mom was at the table, reading, and she looked up, startled. ‘What’s wrong?’ she asked, her voice perfectly normal. I told her what I heard, but she just smiled and said I was hearing the seals outside. I didn’t believe her, but I didn’t argue.

A week later, I had to go down again to fetch some sample jars for her. I was more cautious this time, making noise as I descended. I got to the bottom and reached for the light switch, but a weird blue glow was already spilling from the lab. It pulsed slowly, like a heartbeat. I peered in and saw the tanks of jellyfish—they were all glowing, brighter than I’d ever seen them, and they were all turned to face me. In the center of the room, a small, puddle of water on the floor seemed to be the source. I stepped closer, and the jellyfish pulsed in unison, and I swear I heard my mother’s voice, but it was inside my head, saying, ‘Come, Milo, I have something to show you.’ I backed away, my foot slipping on a wet spot, and I fell hard. The lights flickered, and the blue light vanished. I got up, grabbed the jars, and ran.

Last night was the worst. I woke up at 2 AM to a sound like dripping water, but rhythmic. My room is at the top of the lighthouse, and the stairs have a small landing where we keep a chest of old diving gear. I got up, telling myself it was just the pipes, but I couldn’t shake the feeling I should go down. I opened my door, and the hallway was lit by that same blue glow, but it was coming from the landing, not the lab. I crept down, and there, in the middle of the landing, a puddle of water floated in the air, hovering like a dark mirror, reflecting a sky I didn’t recognize—pale green, with a moon that was too large and too close. In that puddle, I saw a silhouette of a woman, but she was made of black water, and she was reaching out to me. I stepped back, but there was a presence behind me, cold and wet. A whisper, my mother’s voice but wrong, said, ‘You’re not my son.’ I turned, and there was a shape of black water in my doorway, reaching for my face. I screamed and ran, but the stairs seemed endless. I finally burst into the kitchen, and my mother was there, making tea, with no blue light, no wrongness. She asked if I had a nightmare. I couldn’t speak. I just pointed down, and she looked at me with a strange smile. She said, ‘It’s just the water, Milo. It remembers. It looks for a way back.’ I’ve been sitting in my room, the door locked, the window open to the cold sea air, but I can hear the dripping from below, and I know that down in the lab, the jellyfish are pulsing in rhythm, and the puddle under the stairs is growing, and it’s waiting for me to make a mistake. I don’t know how much longer I can stay dry.