Season 13, Episode 5 is titled "Advanced Thanatology". Thanatology is the study of death. Now do you get the joke? We delve into that, Billie's wardrobe upgrade, but lack of weapon containers, how Diana still hates ghost shudders, and then tells you all about the history of plague doctors, and it gets kinda gross.

Research Links

• Men in Tights: Charles De Lorme (1584–1678) and the First Plague Costume
• The Redolent Plague Doctor? – Death Scent
• Edinburgh's Dark Side
• 8 Fascinating Facts About Plague Doctors - Listverse
• Remarks On The Treatment Of Bubonic Plague on JSTOR
• The Plague Doctor: AN engraving by Gerhart Altzenbach (17th century). New Haven, Yale Medical Library, Clements C. Fry Collection on JSTOR
• How Did The Black Plague End? Experts Are Still Working On An Answer
• Plague Doctors, The Masked Physicians Who Fought The Black Death
• 17th-century Plague Doctors Were the Stuff of Nightmares | HowStuffWorks
• Plague doctors: Separating medical myths from facts | Live Science