Puzzle #3

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Across
  1. 3. Place to buy novels
  2. 5. Explosive pyrotechnics
  3. 7. Marine mammal
  4. 8. Collection of books
  5. 9. Insect with colorful wings
Down
  1. 1. Brain-teasing challenge
  2. 2. Sport played with a ball
  3. 4. Nighttime illumination
  4. 6. Landmass surrounded by water
  5. 7. Crime solver