"Most people know the story of Balto, the world famous dog who led his dogsled team through a blizzard to deliver a lifesaving serum to the stricken people of Nome, Alaska, in 1925. Balto shot to instant stardom--a company named dog food after him, a famous sculptor erected a statue of him that stands in Central Park to this day, and the dog even starred in his own Hollywood movie. But what happened to Balto after the hoopla died down? With a lively,...