"The internet is full of dark and wicked things" said a police chief after a shocking crime by two children claiming to be acolytes of the Slenderman. Today we unpick the origins of Slenderman - the internet's scariest creation - and link it back to the pre-internet urban legend of the Mothman. Strap in for a wild ride!

Maddy Pelling and Anthony Delaney are joined by Ceri Houlbrook, folklorist and lecturer at the University of Hertfordshire.

Edited by Tomos Delargy, Produced by Freddy Chick, Senior Producer is Charlotte Long.

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After Dark: Myths, Misdeeds & the Paranormal is a History Hit podcast