Bats and Bacchanalia

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Across
  1. 2. Greco-Roman god of revelry, whom the group is named after
  2. 3. A king's cup for drinking wine
  3. 7. a classic symbol of plenty
  4. 11. A horned, cloven footed creature known for partying
  5. 12. a common chant on the night of October 31st
  6. 13. all things hidden, unseen, and spiritual
  7. 16. an autumn holiday that, much like 1-Down, 4-Down, and 9-Down, ends in N
Down
  1. 1. A Celtic celebration marking the beginning of November
  2. 4. a group of like-minded witches
  3. 5. a specter of lives' past
  4. 6. a dinner, but grander
  5. 8. a disguise for fun
  6. 9. A gourd fit for carving
  7. 10. shaking one's tail feathers.
  8. 14. It changes color when autumn arrives
  9. 15. What you'd call our group mascots, zoologically speaking