Beneath the surface

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Across
  1. 2. dark and _______
  2. 4. not light but ______
  3. 9. a thin, pointed piece of metal, wood, or another rigid material
  4. 10. another word for aliens
  5. 11. starts with c and ends with y, it makes you shiver
  6. 12. scientists make a _________ discovery
Down
  1. 1. steven king writes ______ books
  2. 3. Agatha Cristy write ______ books but this word is I instead of y and ends with ous
  3. 5. what you call something that has rust on it
  4. 6. a book by Garry Crew
  5. 7. something that we all drink that no one is allergic to
  6. 8. something really scary