10 Terrifying Things You Need To Know About The Slender Man

10. Beware the “Slender Sickness”

According to the Slender Man Wiki,”The Slender Sickness is the name given to an apparent illness consisting mostly of coughing fits and coughing up blood, along with occasional nausea, paranoia, vomiting, and extreme exhaustion due to an encounter and being stalked by the Slender Man”.
10. Beware the “Slender Sickness”