The new horror movie Slender Man ends with a vague, voiceover reminder: “we” spread the “virus” that is the antagonist. By sharing Slender Man’s mythos — through websites and drawings and late night ...

Slender Man appears as if out of nowhere, hungry. Blank faced and besuited, the tall, tentacled monster hasn’t slipped into the kitchen to prey upon the pretty girl standing at the hob. Instead, he’s ...