The City of Ember

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Across
  1. 2. a person employed
  2. 5. not up to par in quality
  3. 7. fluffy matter
  4. 9. the desire to learn something new
  5. 11. calm,peaceful
  6. 14. tall and thin
  7. 15. through the midst
Down
  1. 1. covered with knobs
  2. 3. little shop
  3. 4. a center of operations
  4. 6. to commit to memory
  5. 8. to the farther side
  6. 10. transparently thin
  7. 12. a way out
  8. 13. muscular,strong