Hello hello. Trick or treat?

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Across
  1. 2. mermaid
  2. 8. princess
  3. 9. pirate
  4. 10. bumblebee
  5. 11. cowboy
  6. 12. ghost
Down
  1. 1. monster
  2. 3. dinosaur
  3. 4. werewolf
  4. 5. vampire
  5. 6. astronaut
  6. 7. witch