The Magic School Bus Inside the Human Body (Unabridged)
  
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Take a ride inside the human body with Ms. Frizzle and the class! Arnold has swallowed the Magic School Bus! Now, instead of seeing an exhibit of the human body at a museum, the class is taking a look at Arnold's stomach, his intestines, his bloodstream, and more from the inside on this heart-stopping fieldtrip - one the reluctant Arnold would be happy to miss.
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