Harry potter and the philosophers stone

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Across
  1. 3. without without magic powers
  2. 5. "a slight increase"
  3. 8. a teacher of the highest rank in a college or university.
  4. 10. a glass sphere filled with white smoke
  5. 12. a sailing ship
  6. 13. a mischievous
  7. 14. remain in one place in the air.
Down
  1. 1. highly developed
  2. 2. a team sport played while straddling broomsticks,
  3. 4. In Greek mythology
  4. 6. one of two children or animals born at the same birth
  5. 7. The study of herbs and their medical properties, especially when combined.
  6. 9. remain in one place in the air.
  7. 11. a person who is not conversant with a particular activity or skill.