Book cross word

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Across
  1. 4. corporation founded by the main characters dad.
  2. 7. how his mom dies.
  3. 8. what causes the main characters descent
  4. 11. characters friend.
  5. 12. the thing the that main character sees from his friend
  6. 13. main character of the book.
  7. 15. main turning point for the book.
Down
  1. 1. the final message out of the radio
  2. 2. main characters last name
  3. 3. main characters friend.
  4. 4. place where the story happens
  5. 5. how he navigates the underground.
  6. 6. title of the book
  7. 9. How the story starts
  8. 10. the thing the character looks at the stars
  9. 14. the place the main character used to live.