Wonder

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Across
  1. 2. August's Principal of his new school
  2. 3. August's favorite subject
  3. 5. Augie's sister
  4. 6. Author of the book
Down
  1. 1. Assistant of Mr. Tushman
  2. 4. Augie's best friend
  3. 7. She was one of August's welcome buddy and has blonde hair