A group of teenagers discovers a mysterious box hidden in the woods behind their school. The box contains a strange, glowing stone that seems to have magical powers. The teenagers take the stone back to their school, where they use it to play pranks on their classmates. But as time goes on, the stone's powers grow stronger, and the pranks become more dangerous. As the story continues, the teens' pranks become more elaborate and their classmates begin to suspect something strange is going on. They can't figure out how the pranks are happening, and they become increasingly frightened. The teens know they must get rid of the stone, but they can't bear to part with it. They become more and more obsessed with its power. Eventually, one of the teens goes too far, and a tragic accident occurs. The teens realize they must put an end to the stone's power, no matter the cost.
As the story continues, the friends realize they're trapped in the past, and they're running out of time to fix their mistakes. Desperate, they search the journals for a way to return to the present, but they discover the journals are written in a strange code. As they frantically try to decipher the code, they realize the journals are changing - the words are fading, the pages are disappearing. They finally realize the journals are erasing themselves, and there's nothing they can do to stop it.
