The Mysterious Puzzle

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Across
  1. 3. A challenge
  2. 7. Circular path around something
  3. 8. To shout
  4. 10. Pointed projectile
  5. 11. Flowing body of water
  6. 13. Sudden or unexpected change
  7. 15. Fertile spot in the desert
  8. 16. Common or habitual
  9. 19. Respected older person
Down
  1. 1. Bird of prey
  2. 2. Black gemstone
  3. 4. Excited or enthusiastic
  4. 5. Place for residence
  5. 6. Time of darkness
  6. 9. Feline pet
  7. 12. To wander
  8. 14. Opposite of large
  9. 17. To speak or say clearly
  10. 18. Worth of something