Sled dog

The heartwarming tale of Isobel, a sled dog that became blind but pined to be allowed back in races and still helped win them, opens this work. That story is followed by information on the first dogs in the Arctic, their adaptation to that frigid environment, the dogs' use in the gold rush and in a 1925 diphtheria outbreak in Alaska, and the Iditarod. Sidebars include one on the commands used with sled dogs.