Borrasca is a five-part novel written by C.K. Walker and originally published as a series on Reddit's NoSleep archive.

Sam Walker moves to the town of Drisking, Missouri one summer and quickly befriends two other kids, Kyle and Kimber. They take a trip to a strange treehouse, where you are supposed to carve your name on the tree or "you'll disappear". When Sam's sister, Whitney, actually does disappear a few months later, he passes five lonely years wondering what happened to her. When more people start disappearing suddenly, the three take it upon themselves to find out what's happening to all the disappearing people what connection the disappearances hold with the mountain outside of town.

The originally four parts of the story were published in 2015. Due to popular demand, Walker expanded on the story with a fifth installment in 2016, which takes place years after the events of the first part. The full novel is over 58,000 words.

Borrasca can be read CK Walker's official site: https://ck-walker.com/