Greek Mythology Puzzle!

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Across
  1. 5. Guard dog of the underworld
  2. 6. Father of Zeus, Poseidon, and Hades.
  3. 7. Poseidons weapon
  4. 9. Goddess' who sung of Heroes
  5. 10. God of Thunder
  6. 13. Goddess of Love
  7. 14. Girl gifted with a box that held all the evil things in the world
  8. 15. God of the Underworld
Down
  1. 1. Women with snakes for hair
  2. 2. Monsters which lured sailors into the sea with song
  3. 3. One-eyed monster
  4. 4. Half human half god son of Zeus
  5. 7. Zeus' weapon
  6. 8. Goddess of Wisdom
  7. 11. God of the Sea
  8. 12. Personification of Earth
  9. 13. Capital of Greece