I should have listened. When my sister Lily slipped a folded note into my hand at JFK Airport, her terrified eyes warned me of something I refused to believe. The note read: RUN. DO NOT GET ON THE PLANE. LOOK FOR THE BLACK SQUARE. Certain she was having another episode, I ignored her and headed toward my flight. But before boarding, I noticed a small black square painted near the tarmac, and a chill ran through me.

Unable to shake the feeling, I left the gate and unfolded the note again. Inside was a crude sketch of our childhood home, distorted and unsettling. One window was crossed out with a jagged X, and beside the front door sat the same black square. Lily had always spoken about strange patterns and hidden dangers, claims I had dismissed for years. Yet seeing that symbol again made me question everything I thought I knew.

As I returned toward security, I spotted a man in a dark suit standing motionless beside a maintenance door. Painted on the wall next to him was another black square. My breath caught. The note, the symbol, the man—it was all connected. Suddenly, boarding the plane felt less like freedom and more like walking into a trap. For the first time, I believed Lily might have been right.

I abandoned my flight and stepped back into the New York night. The life I had planned no longer mattered. Looking at the note one final time, I realized the black square wasn’t a warning—it was a key. I would find Lily, uncover the truth behind our family’s past, and confront the darkness that had followed us for years.