Across
- 4. Percy's dad
- 7. The protagonist
- 8. Percy's mom
- 10. One of Grover's favorite snacks
- 12. Percy's friend from Camp Half Blood and Athena's daughter
- 14. Percy's uncles
- 17. God of war
- 18. Nickname Annabeth gave Percy
- 20. These go to Camp Half Blood
Down
- 1. Percy's protector and friend
- 2. Percy battled and defeated this
- 3. Has elevator to Olympus
- 5. Ferryman for the Underworld
- 6. The god of wine
- 9. Betrays Percy, is an antagonist
- 11. Satyr who has been missing for over 2000 years
- 13. Uses powers to let demigods and Olympians communicate remotely through a network of rainbows
- 15. Identify demigods living in the mortal world
- 16. Mr. Brunner's real name
- 19. Percy gains more power from this