Marrow thieves puzzle

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Across
  1. 2. type of rubble or rocks
  2. 3. infinity
  3. 7. moving through school hallways
  4. 10. something that’s looks used
  5. 11. silent treatment
  6. 13. of nail
  7. 16. Santa slay
  8. 18. covering something
  9. 19. something to wear on your head
  10. 20. to work out your
Down
  1. 1. held hostage
  2. 2. still
  3. 4. to hold tightly
  4. 5. taken it back
  5. 6. color of sky
  6. 8. walking down red carpet certain way
  7. 9. another word for nervous
  8. 12. opposite of happy
  9. 14. between muscle
  10. 15. animal with rabies are this
  11. 17. type of bandage