Across
- 2. Aunty Em, whose head Percy slices off by watching her reflection and mails it to Mount Olympus
- 7. Percy's age
- 9. titan cut to pieces by Zeus to save his swallowed siblings
- 10. part human, part goat like Grover
- 11. golden blood of the gods Percy spills when he cuts Ares's heel
- 12. Percy sees three old ladies (the Fates) knit giant blue ____ and cut the yarn.
- 15. 3-headed guard dog Annabeth distracts with a red ball
- 17. shines above Percy's head as proof he's Poseidon's son
- 20. denies being controlled by dreams; Percy wins back Hades's stolen item from him and sends it back to Hades
- 24. magical material the master bolt is made of
- 25. robotic creatures Hephaestus sets up as a trap for his cheating wife which scares Annabeth
- 27. God of Wild Places, lost for 2000 years
- 31. works at DOA Recording Studio and delivers souls to the Underworld
- 32. the Pre-Algebra teacher Percy vaporizes but nobody seems to recall
- 34. god who fails to appreciate Percy for returning his master bolt; denies Kronos is trying to reclaim power
- 35. has a scar on his face and is the son of Hermes; revealed to be the lightning thief
- 37. found on the 600th floor of the Empire State Building
- 39. crowded dark fields where most souls go in the Underworld
- 41. Gabe's prized possession that gets blasted by lightning
- 42. the river in which Percy discovers his ability to breathe underwater as he retrieves Riptide
- 46. the cavern in the Underworld holding Kronos, where Grover's shoes nearly fly him into
- 48. Mr. Dionysus (D) is Camp Half-Blood's director and god of ____.
- 49. the river on which the Big Three swore not to father more children with humans; runs through the Underworld
- 50. daughter of Athena who helps Percy on his quest; struggles with her relationship with her dad
- 52. the animal in the 18-wheeler Percy understands
- 55. God of the Underworld; Chiron suspects he's behind Zeus's lost lightning bolt
- 56. the feature protecting camp created out of Thalia's self-sacrifice
- 58. Percy's item given to him by Ares, in which Hades finds the stolen master bolt
- 59. Percy's real name
- 60. the monster Percy defeats to reach camp and keeps his horn
Down
- 1. Hades's symbol of power that turns its wearer invisible, gives power to pass through walls, and radiates fear
- 3. the item Ares sends Percy to get from the Tunnel of Love in exchange for a ride west
- 4. daughter of God of War Ares, who gets blasted by plumbing courtesy of Percy
- 5. winged creatures of the Underworld looking for Hades's stolen item
- 6. team name on Annabeth's magic baseball cap
- 8. St. Louis monument that gets destroyed when Percy meets Echidna and her son Chimera
- 13. Percy's friend who failed his mission to protect a half-blood 5 years ago
- 14. fruit grown at Camp Half-Blood that provides funds to operate
- 16. location in Los Angeles where Percy finds the entrance to the Underworld
- 18. Percy's disability that makes reading difficult
- 19. Grover's uncle turned to stone
- 21. part human, part horse, like the trainer of heroes Chiron
- 22. obscures mortals' vision when magical elements are at work
- 23. currency (money) of the Greek gods
- 26. cabin number assigned to children of Hermes, god of travelers, and all undetermined half-bloods
- 28. Percy's most recent school to expel him
- 29. Luke's sword that can kill mortals and immortals
- 30. the Las Vegas hotel & casino in which Percy loses time playing video games
- 33. deadline for Percy to return Zeus's stolen master bolt to avoid war
- 36. Luke gives Percy winged ____ to take on his quest.
- 38. what Procrustes does to his short victims so they're 6 feet tall, until Percy cuts off his head
- 40. type of messaging made in the rainbow of mist
- 43. Anaklusmos, or Riptide, always returns to Percy's pocket as a ____.
- 44. animal Ares releases upon Percy, which he defeats
- 45. Percy's mom who is taken hostage by Hades
- 47. magical items Percy smashes so he, Grover, & Annabeth can escape the Underworld in bubbles to the sea
- 51. beautiful fields where souls go as a reward; contains the Isles of Blest for the select few who earn it
- 53. what Percy's favorite teacher Mr. Brunner uses to get around
- 54. what Percy calls the man his mother married
- 57. animal Luke sets on Percy to bite him before he flees camp, brainwashed by Kronos