Z for Zachariah

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Across
  1. 3. unexplainable
  2. 4. someone to fix something
  3. 8. condition of great disorder
  4. 9. a light or signal
  5. 10. optical illusion
  6. 12. spontaneous emission of radiation
  7. 13. quick
Down
  1. 1. a devise to measure radiation
  2. 2. a mixed breed
  3. 5. to suffocate
  4. 6. mentally confused
  5. 7. completely puzzled
  6. 11. to scare