"A long time ago, before the sun, the moon, the stars-even before the Earth and sky existed-Mother Rat lived in the workshop." The opening words of How Mother Rat Invented the World tell of a workshop that existed outside of space and time, but to Mother Rat, a very practical packrat, it was simply the home she shared with her three children, her friend Blue Jay, and the Old Man and Woman. For a long time-although since time did...