I had always brushed off weird occurrences, but that changed when I found a yellow Post-it note on my desk with a message I didn’t recognize. It was a simple reminder, but I didn’t remember writing it. Over the next few days, more notes appeared, each increasingly unsettling. One note even mentioned my landlord, which confused me further.
I set up a webcam, but the footage was deleted. Then I discovered a blank Post-it on my door, and others had them too. I panicked and confided in my friend, Jessica, who suggested carbon monoxide poisoning as a possible explanation.
After testing, I found dangerously high CO levels in my apartment, which explained my symptoms. The leak was coming from the parking garage, and my landlord had known. I moved out, but I still wonder if I wrote the third note or if something else was trying to warn me.
