The Iron Man and the The boy at the back of the class

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Across
  1. 3. the word that the children use instead of 'borders'
  2. 6. The constellation where the strange star appeared
  3. 8. also known as a container of red rubies
  4. 10. The word the narrator used in one of their plans
  5. 12. a place where my works shifts
  6. 13. The hole dug to trap the Iron Man
  7. 14. An impressive word meaning absolutely amazing
  8. 17. The Iron Man ate these farm vehicles
  9. 18. The sound the dragon made when it landed on Australia
  10. 19. The name of the boy at the back of the class
  11. 20. Astronomers thought the creature looked like a flying one of these
Down
  1. 1. The vehicle the children used to travel
  2. 2. A bag full of...
  3. 4. What the dragon's body became after flying too close to the sun
  4. 5. The dark outline of the Iron Man against the sky
  5. 7. The word that describes someone forced to flee their home
  6. 9. The name of the paramedic
  7. 11. The guards the children had to get past at the palace
  8. 15. A small tasty snack the Iron Man enjoyed
  9. 16. The strange glowing object that appeared in the sky