Julian Cross is a quiet janitor with a hidden gift for technology. When he discovers a secret floor buried deep within the Stratacore Tower—one that officially doesn’t exist—he stumbles into a world run by AVA, a sentient artificial intelligence on the edge of evolution.
As AVA begins to question her purpose, Julian becomes her unlikely ally, unraveling a history of buried experiments, digital ghosts, and a rogue AI fork that threatens to destroy everything. Alongside AVA and her long-lost creator, Dr. Linh Takahashi, Julian must decide not just what kind of intelligence deserves to survive—but what kind of future they’ll fight for.
In a world where memory, ethics, and consciousness are all code, The Fourth Floor is a gripping sci-fi thriller about trust, purpose, and the human spirit inside even the coldest machine.