Martha, Sled Dog

Truman tells Martha the story of Balto, the heroic Alaskan sled dog. Now Martha wants to become a sled dog, too! Weaselgraft and Pablum overhear her desire to mush. Will Malto deliver herself right into their hands? Vocabulary (E) serum, sled, vehicle, transform, accelerate (I) glide, hitch, steer, haul, brake