Harry Potter

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Across
  1. 1. what Sirius Black can turn into
  2. 3. you ride on it
  3. 5. you make magic with it
  4. 7. you send a message with it
Down
  1. 1. head of Hogwarts
  2. 2. Harry's best friend, boy
  3. 4. you wear it on your head
  4. 6. dog with three heads