When Mateo tried to unzip the file, his computer began to hum with an unnatural intensity. His antivirus didn't flag a virus; instead, it simply shut down. As the progress bar reached 99%, his monitor flickered, casting a sickly, pale-green light across his room.

Inside the folder were thirteen images, numbered 1.jpg through 13.jpg . The Contents

According to the legend, Mateo didn't lose his life or his computer. Instead, he lost his of the last thirteen years. He woke up the next morning unable to recognize his parents, his friends, or even his own reflection in the mirror.

The first few images were mundane—blurry photos of a suburban playground, a birthday cake with flickering candles, and a bicycle left on a lawn. However, as Mateo clicked through them, the images began to distort.

To this day, the file is said to reappear on peer-to-peer networks. Those who have seen it claim that if you look closely at the file properties, the "Date Created" field doesn't show a day or time—it simply displays your own birthdate.

In 2009, a user on an obscure imageboard posted a link to a file named simply 13 anyos.rar . The name, which translates to "13 years," came with no description other than a warning: "Do not extract if you want to keep your memory."