Call of the wild

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Across
  1. 1. cold and slippery
  2. 4. wooden object
  3. 7. Sharp tooth
  4. 10. past relatives
  5. 11. Dogs pull what kind of sled.
  6. 12. Thornton
Down
  1. 2. Indian Group that killed John
  2. 3. Jealous of Buck
  3. 5. Person in charge
  4. 6. Lead dog
  5. 8. natural state
  6. 9. Thornton