Antoine Robidoux, equally at home in the mountains or the Santa Fe governor's home, built a vast fur trading empire that covered modern day western Colorado and eastern Utah. In his book, Ken Reyher tracks the life of a young adventurer who heads West to eventually build a trading empire that successfully challenged even the powerful Hudson Bay Company. As quickly as he rose, his world came crashing down, and one of the great chapters of the early west came to an end.