Some doors were never meant to be opened.
After the death of their parents in a mysterious plane crash, Gabriel and his sister María struggle to rebuild their lives while something unseen begins to fracture the world around them. Years later, living alone in an aging apartment building, Gabriel starts noticing impossible sounds coming from the ceiling, hallways that change during the night, and neighbors who no longer seem entirely human.
Everything begins to revolve around a red book that once belonged to his mother.
A forgotten journal.
A name repeated far too many times.
And a phrase he cannot get out of his head:
"Strange is the night when black stars rise."
As reality slowly unravels, Gabriel discovers that some things do not need doors to enter.
They only need to be seen.
The Sixth Floor is a psychological and cosmic horror novel inspired by the fear of the unknown, where paranoia, grief, and obsession intertwine with impossible entities, breathing buildings, and skies that stare back.
Perfect for readers who enjoy atmospheric horror, psychological tension, and stories that linger in the mind long after the final page.