Son of Neptune

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Across
  1. 1. Child of Mar/Ares
  2. 3. Mother goddess
  3. 5. child of Poseidon/Neptune
  4. 8. God of death
  5. 9. Know a lot
Down
  1. 2. Has a sister
  2. 4. He is the eldest giant, born to oppose Hades
  3. 6. A roman legacy of Apollo and the Auger of Camp Jupiter
  4. 7. Child of Pluto/Hades