The Eleventh Floor – A Novel

Medical student Sofiane Belhaj moves into apartment 11-B in a brutalist tower block in Bab Ezzouar, Algiers. The rent is impossibly low. The building is quiet in a way buildings should not be quiet. And at 3:47 AM, the walls begin to change.

What starts as a hairline scratch on the living room wall becomes something far worse: a growing fissure that pulses with amber light, revealing figures and shapes that should not exist inside concrete. When Sofiane discovers that nine previous tenants of his apartment have vanished without explanation, he is drawn into a mystery that runs deeper than the building’s foundations.

Joined by a relentless journalist and a reclusive geology professor hiding decades-old secrets, Sofiane follows the evidence underground, beneath the streets of Algiers, into chambers carved by something that has been alive since before the city was built. Something that has been listening. Something that does not want to harm them.

It wants to talk.

The Eleventh Floor is a literary thriller set in the heart of modern Algeria, blending supernatural horror with archaeological mystery and a deeply human story about what lies beneath the places we call home. A novel about disappearance, discovery, and the terrifying possibility that the ground beneath our feet has been conscious all along.