The Great Serum Race

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Across
  1. 1. materials transported in a train or vehicle
  2. 4. mysterious; scary
  3. 6. a person who is in charge of a dog sled
  4. 10. an illness that spreads and affects a lot of people
Down
  1. 2. difficult; dangerous
  2. 3. a medicinal liquid used to battle an illness
  3. 5. a form of the verb perish: to die
  4. 7. the time when the sun is beyond the horizon, but its light is still visible; often after sunset
  5. 8. to walk through water
  6. 9. a struggle; a dangerous and difficult situation