Bermuda Triangle

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Across
  1. 5. event, something that happens
  2. 7. appear again
  3. 12. hard to explain
  4. 13. an island territory in the Atlantic ocean
Down
  1. 1. how something mysterious makes us feel
  2. 2. vanish from view
  3. 3. can't be found
  4. 4. noun for investigate
  5. 6. electronic message sent out by radio
  6. 8. not normal or usual
  7. 9. to happen
  8. 10. sent
  9. 11. people who work on a ship or plane