crossword

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