11th Birthday Crossword Challenge

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Across
  1. 3. Title of one of the Percy Jackson books
  2. 5. A pop single by a South Korean musician
  3. 9. Your mother's job
  4. 10. A One Direction song
  5. 15. Name of Percy Jackson's father
  6. 17. A big fan of One Direction
  7. 19. Your favourite subject
  8. 21. Amachi's nickname for you
Down
  1. 1. Amachi's pet
  2. 2. One of your cousins
  3. 4. Bella's breed
  4. 6. Performers of Payphone
  5. 7. Sacrament received before Holy Communion
  6. 8. Hermione Granger's cat
  7. 11. Author of one of your favourite books
  8. 12. Your year-end holiday destination
  9. 13. A similar game to rugby played with broomsticks
  10. 14. Harry Potter's position on the Quidditch team
  11. 16. Number of members in One Direction
  12. 18. One of your friends
  13. 20. Number of Books in Harry Potter series