Across
- 1. - Percy's older half brother
- 4. - Calypso's island
- 5. - Daughter of Hades
- 7. - Stheno and Euryale's more famous sister
- 9. - Tyson is a...
- 10. - Daedalus' nickname at camp
- 13. - Cut off one head and two will grow to take its place
- 14. - The hero of the prophecy
- 15. - Sally's second husband
- 16. - Who turns Percy into a hamster
- 17. - Where Percy meets Rachel for the first time
- 19. - Fresh water spirits
- 22. - The colour of chocolate chip cookies
- 23. - Food of the Gods
- 25. - God in exile, lover of Diet Coke
- 28. - Who was trapped under Mt Saint Helen's
- 29. - Percy's nickname for his stepfather
Down
- 2. - Percy's bully at Yancy Academy
- 3. - Annabeth's weapon of choice
- 5. - Percy's pegasus
- 6. - Mrs Dodds' real name
- 8. - Annabeth's biggest fear
- 11. - Sons of Hermes, pranksters
- 12. - Titan put to defeated by the nature spirits of Central Park (and Percy)
- 18. - Riptide's real name
- 20. - Percy's pet hellhound
- 21. - Percy's fatal flaw
- 24. - Grover's girlfriend
- 26. - Annabeth's hat supports which team
- 27. - Mother of the Gods