TT monsters

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Across
  1. 3. it flows in our veins
  2. 4. bone in our head
  3. 6. a reptile without limbs
  4. 8. an animal that howls
  5. 9. 12:00 o'clock at night
  6. 10. drinks blood
  7. 12. a transparent creature
Down
  1. 1. it comes from outer space
  2. 2. old building from medieval
  3. 5. name of J.K.Rowling daughter
  4. 6. arachnid that makes web
  5. 7. J.K.Rowling's country of origin
  6. 8. she rides broom
  7. 11. it shines at nigh