crossword

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Across
  1. 4. Name of 1st book
  2. 5. How many books he wrote of that row?
  3. 7. Author`s name?
Down
  1. 1. Name of the main character
  2. 2. In which floor is the Olympus
  3. 3. English word for the son or daughter of a god whose mother/father is a human
  4. 6. The real father of Percy