Anaya had just moved into her new apartment in the heart of the city. The building was old, but the rent was cheap, and the location was perfect for her job. While handing her the keys, the landlord gave her an odd warning. He pointed at the last door in the hallway and said in a serious tone, “Never open that door. It’s sealed for a reason.”At first, Anaya laughed. Maybe it was just a silly superstition to keep tenants away from an unused storage room. But that night, when the clock struck 2 a.m., she heard it—knocking. Slow, rhythmic,