The Twenty One Balloons

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Across
  1. 4. is a retired arithmetic teacher
  2. 6. left on a balloon to escape his mundane life of teaching
  3. 10. invented their own form of amusement
  4. 11. known as indonesia
  5. 12. decided to work with the professor to save the lives of everyone on the island
Down
  1. 1. tells something about nostalgia and about moving on
  2. 2. portrayed intelligent and generally
  3. 3. the nature of the journey on which to embark
  4. 5. destroyed the Pacific island of Krakatoa in 1883
  5. 7. established a wealthy and fanciful colony
  6. 8. on the Atlantic with 21 deflated balloons
  7. 9. an island full of great wealth and fantastic inventions