The Vampire Diaries Photos from "The Downward Spiral" Carissa Pavlica at February 23, 2015 7:24 pm. "The Downward Spiral" is The Vampire Diaries Season 6 Episode 16 and we have photos. 1. Double Fisted - The Vampire Diaries Season 6 Episode 16 Caroline will drink two drinks. How will that work for everyone? 2. Guarding the Elixir of the Gods - The Vampire Diaries Season 6 Episode 16 Even vampires know to guard the drinks. Caro does a good job. 3. Party Guests - The Vampire Diaries Season 6 Episode 16 Stefan and Elena happen to crash Caroline's party. 4. Looking Concerned - The Vampire Diaries Season 6 Episode 16 Stefan looks concerned, and he should. Caroline's not doing well. Wait! There's more! Just click "Next" below: Next Edit Delete