Percy Jackson/Heroes of Olympus, etc. Crossword Puzzle

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Across
  1. 1. This is Jason's surname
  2. 8. It is this character who causes Zeus to cast Apollo to Earth
  3. 11. This is the name of Magnus's cousin?
  4. 13. Thanks to Percy, this unfortunate occurrence awakens Gaia in "The Blood of Olympus"
  5. 15. Percy is the son of Poseidon, the god of the ____
  6. 17. This demigod betrays Percy but dies destroying Kronos
  7. 19. Magnus is the son of this god
  8. 20. Magnus is rescued by a _________
  9. 21. The Kane Chronicles centers around this mythology
Down
  1. 2. This stone unleashes Set, the god of evil, in "The Red Pyramid"
  2. 3. In "The Chalice of the Gods" Percy is trying to get recommendations for this
  3. 4. This demigod dies destroying Gaia but is resurrected by Festus
  4. 5. This is Carter's girlfriend
  5. 6. The name of Sadie's boyfriend, who becomes one with Anubis
  6. 7. In "The Titan's Curse", Zoe is one of these maiden followers of Artemis
  7. 9. Leo vows on the River Styx that he will come back to this character
  8. 10. In Magnus Chase book 2, this character's weapon goes missing... uh-oh!
  9. 12. This character is the son of Dionysus that the god asks Percy to protect
  10. 14. This feline character turns into Bast, the cat goddess, in "The Red Pyramid"
  11. 16. "A half-blood of the ____ gods" (line from the Great Prophecy
  12. 18. This many half-bloods must answer the call