Horrible, giant, icky things of all sorts live in a swamp. Roll 1d12:

  1. Giant Dragonfly.
  2. Giant Frog.
  3. Giant Mosquitos.
  4. Giant Alligator.
  5. Giant Freshwater Shark
  6. Giant Catfish.
  7. Giant Skunk Ape *Sasquatch
  8. Giant Ghoul.
  9. Giant Hag.
  10. Giant Bats.
  11. Giant Snake.
  12. Swamp Giants.