The Heroes of Olympus

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Across
  1. 4. the reason why all of Cabin Nine's inventions started to malfunction
  2. 6. a war that was started by stealing possessions from gods.
  3. 7. the author of the book
Down
  1. 1. half god half human
  2. 2. the prophecy about the defeat of Gaea and closing the doors of death
  3. 3. the drink of the gods
  4. 5. the son of Poseidon/Neptune