This week Denae tells Kim the backstory of Bloody Mary. 

Sources: 

Smithsonian Magazine Article- The Myth of Bloody Mary by Meilan Solly

https://www.smithsonianmag.com/history/myth-bloody-mary-180974221/

Wikipedia- Bloody Mary 

https://en.wikipedia.org/wiki/Bloody_Mary_(folklore)

HauntedRooms.com Article- The True Story of the Bloody Mary Ghost

Shaw Local News Network Article- Legends Abound Regarding Bloody Mary Worth by Jesse Carpender