The Slender Man is an alleged paranormal figure, which many people believe he been alive for centuries.
Slender Man is a creature with really long, slender arms and legs. He has black tentacles that come out of his back, which is about 4 to 8 long. He wears a black tux, reference to the Men in Black, and dress shoes. His face is faceless, pale, and a ghostly look. His appearance is similar to the opperator who is seen in the internet series Crystal lakes 44, Marble hornets, and everymanHYBRID.
Slender man doesn't have a set backstory. However it is said through urban legends that he has been around for centuries, generally as an immortal being who lives in the woods. He targets normally little children. Though he was created in something awful forums in 2009. Yet there are sights by people who have claimed to see this man. It is often stated that he stalks people and kidnaps children yet it was never figured out what he does to them. Slenderman's set origin varies through culture, everyone does have their own beliefs.
Often depicted being 8-15 feet tall.
He's Older than time itself
He makes appearances in the games Slender: The Eight pages and Slender: The Arrival.