Across
- 3. The game that Camp Half-Blood plays in teams, where Percy was used as a distraction so that his team could win
- 5. The city where the entrance to the Underworld is located
- 7. The part of the body where Percy stabbed Ares in their battle
- 10. The name of the mythical creature that Chiron is
- 11. The name of the boarding school that Percy attends at the start of the book
- 13. The city where the entrance to Mount Olympus is located
- 14. The god of nature who Grover wants to search for
- 15. The Ferryman of the Dead who wants a pay raise!
Down
- 1. The monster that Percy defeated on his way to Camp Half-Blood (Percy also stole a horn from this monster!)
- 2. Mrs. Dodds is one of these three monsters
- 4. The Lord of the Underworld and Percy's Uncle
- 6. The item that Ares wanted Percy, Annabeth, and Grover to get from the water park
- 8. The name of the mythical creature that Grover is
- 9. The name of the poodle that Percy, Annabeth, and Grover return for reward money that buys their train tickets west
- 12. The beast guarding the entrance to the Underworld