Heroes of Olympus

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Across
  1. 3. The third book of the series
  2. 5. camp for roman demigods
  3. 9. Son of hades
  4. 10. The last book of the series
  5. 14. daughter of Athena
  6. 15. son of poseidon
  7. 16. the harpy that recites everything she reads
  8. 18. daughter of Zeus
  9. 20. half bother to a son of Poseidon
  10. 21. daughter of Atlas
  11. 22. son of Mars
  12. 23. daughter of Pluto
Down
  1. 1. The fourth book of the series
  2. 2. Son of Jupiter
  3. 4. saytr with a temper
  4. 6. son of apollo
  5. 7. camp for greek demigods
  6. 8. protector of Percy
  7. 11. daughter of Hades
  8. 12. daughter of aphrodite
  9. 13. The titan that helped them in Tartarus
  10. 17. The second book of the series
  11. 18. the first book of the series
  12. 19. son of Hephaestus